{"id":4676,"date":"2015-03-15T22:35:05","date_gmt":"2015-03-15T14:35:05","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=4676"},"modified":"2018-01-08T00:47:48","modified_gmt":"2018-01-07T16:47:48","slug":"css3-object-position-object-fit","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2015\/03\/css3-object-position-object-fit\/","title":{"rendered":"\u534a\u6df1\u5165\u7406\u89e3CSS3 object-position\/object-fit\u5c5e\u6027"},"content":{"rendered":"<p>by <a href=\"http:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"http:\/\/www.zhangxinxu.com\/\">http:\/\/www.zhangxinxu.com<\/a><br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=4676\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=4676<\/a><\/p>\n<h3>\u4e00\u3001\u6625\u6765\u4e86\uff0c\u6625\u6765\u4e86~<\/h3>\n<p>\u5e18\u5916\u96e8\u6f7a\u6f7a\uff0c\u6625\u610f\u9611\u73ca\u3002<\/p>\n<p>\u5947\u602a\uff0c\u4e3a\u4f55\u6211\u8981\u5199\u4e2a\u8bd7\u6bb5\u5b50\u5462\uff1f<\/p>\n<p>\u6216\u8bb8\u662f\u56e0\u4e3a\uff0c\u672c\u5e94\u662f\u9633\u6625\u4e09\u6708\u7684\u65f6\u5019\uff0c\u4f9d\u65e7\u9634\u51b7\u6f6e\u6e7f\uff0c\u4e1d\u4e1d\u51c9\u610f\u4fb5\u5165\u5c0f\u817f\uff0c\u65e0\u6cd5\u8ba9\u6211\u65e0\u6cd5\u5b89\u5fc3\u6574\u7406\u601d\u8def\u3002\u60f3\u660e\u767d\u4e86\u8fd9\u70b9\uff0c\u6211\u7acb\u9a6c\u7ad9\u8d77\u8eab\u6765\uff0c\u6253\u5f00\u623f\u95e8\uff0c\u5927\u6b65\u8d70\u51fa\u53bb\uff01\u53bb\u5916\u9762\u547c\u5438\u65b0\u9c9c\u7a7a\u6c14\u2026\u2026\u2026\u2026\u5417\uff1f\u4e0d\u662f\u7684\uff0c\u6211\u662f\u53bb\u5367\u5ba4\u62ff\u9065\u63a7\u5668\uff0c\u5f00\u4e2a\u7a7a\u8c03\uff0c\u7ed9\u5c4b\u5b50\u5347\u4e2a\u6e29\uff0c\u597d\u5b89\u5b89\u5fc3\u5fc3\u5199\u70b9\u4e1c\u897f\u3002<\/p>\n<p>\u6069\uff0c\u9884\u70ed\u4e86\u6570\u5206\u949f\uff0c\u6696\u6c14\u547c\u5566\u5566\u51fa\u6765\u4e86\u3002\u6069\uff0c\u6625\u6765\u4e86\uff0c\u6625\u6765\u4e86~~\u53ef\u4ee5\u5b89\u5fc3\u5e72\u6d3b\uff0c\u60f3\u4e9b\u6280\u672f\u7684\u4e1c\u897f\uff0c\u800c\u4e0d\u662f\u65e0\u6545\u5192\u51fa\u5947\u602a\u7684\u53e4\u8bd7\u8bcd\u4e86\u3002<\/p>\n<h3>\u4e8c\u3001\u4ece\u54ea\u91cc\u5f00\u59cb\u5462\uff1f<\/h3>\n<p>\u53ef\u4ee5\u5199\u7684\u70b9\u5f88\u591a\uff0c\u4ece\u54ea\u91cc\u5f00\u59cb\u5462\uff1f<\/p>\n<p>\u554a\uff0c\u5148\u624b\u6807\u9898\u5165\u624b\u5427\u3002\u9996\u5148\u662f\u201c\u534a\u6df1\u5165\u201d\uff0c\u6807\u9898\u8fd9\u91cc\u4e4b\u6240\u4ee5\u79f0\u4e3a\u201c\u534a\u6df1\u5165\u201d\uff0c\u4e0d\u662f\u56e0\u4e3a\u77ed\uff0c\u800c\u662f<code>object-position\/object-fit<\/code>\u81ea\u5df1\u5c1a\u672a\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u5b9e\u8df5\u8fc7\uff0c\u6ca1\u6709\u8db3\u591f\u591a\u5b9e\u8df5\u7ecf\u9a8c\u7684\u8ba4\u77e5\u90fd\u4e0d\u80fd\u79f0\u4e3a\u201c\u6df1\u5165\u7406\u89e3\u201d\u3002\u6309\u7167\u4ee5\u524d\u7684\u8c03\u8c03\uff0c\u6211\u4f1a\u53d8\u8eab\u6210\u8427\u656c\u817e\u2014\u2014\u4e0d\u751f\u4ea7\u6c34\uff0c\u53ea\u662f\u5927\u81ea\u7136\u7684\u642c\u8fd0\u5de5\uff0c\u7136\u540e\u6587\u7ae0\u540d\u79f0\u5c31\u662f\u201cCSS3 object-position\/object-fit\u7b80\u4ecb\u201d\uff0c\u5c31\u662f\u628a\u5b98\u65b9\u6587\u6863\u4e2d\u6587\u68b3\u7406\u4e00\u4e0b\u3002\u4f46\u662f\uff0c\u672c\u6587\uff0c\u6709\u5f88\u591a\u81ea\u5df1\u52a0\u5de5\u8fc7\u7684\u4ea7\u51fa\u3001\u6709\u5f88\u591a\u4e2a\u4eba\u7406\u89e3\u5728\u91cc\u9762\u7684\u3002\u6545\uff0c\u7efc\u4e0a\uff0c\u540d\u66f0\u4e3a\u201c\u534a\u6df1\u5165\u201d\u3002<\/p>\n<p>\u7136\u540e\u5c31\u662f\u672c\u6587\u4e3b\u89d2\uff0c\u4e00\u5bf9\u5144\u5f1f\uff0c<code>object-position<\/code>\u548c<code>object-fit<\/code>\u3002\u65e2\u7136\u662f\u4e3b\u89d2\uff0c\u80af\u5b9a\u8981\u4e0d\u65ad\u6253\u5c0f\u602a\u5347\u7ea7\u7684\uff0c\u7535\u89c6\u5267\u624d\u521a\u5f00\u5934\uff0c\u6240\u4ee5\u4f60\u522b\u6307\u671b\u76f4\u63a5\u9ad8\u6f6e\uff0c\u6162\u6162\u6765\u3002\u6211\u4eec\u4e0d\u59a8\u5148\u6765\u4e86\u89e3\u4e0b\u8fd9\u91cc\u7684<code>object<\/code>\u4e3a\u4f55\u7269\uff1f<\/p>\n<p>\u8981\u4e86\u89e3\u5c5e\u6027\u540d\u4e0a\u7684\u8fd9\u4e2a\u7684<code>object<\/code>, \u6211\u4eec\u8fd8\u5f97\u4ece\u5b98\u65b9\u89e3\u91ca\u5165\u624b(\u82f1\u6587)\uff1a<\/p>\n<blockquote><p>The <code>object-fit<\/code> CSS property specifies how the contents of a replaced element should be fitted to the box established by its used height and width.<\/p><\/blockquote>\n<blockquote><p>The <code>object-position<\/code> property determines the alignment of the replaced element inside its box.<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/105.gif\" align=\"absmiddle\"> \u5c0f\u54e5\uff0c\u4f60\u2122\u5728\u9017\u6211\u5462\uff01\u867d\u7136\u6211\u65e0\u6cd5\u6d1e\u5bdf\u82f1\u6587\u7684\u5185\u5fc3\uff0c\u4f46\u662f\uff0c\u6211\u8fd8\u662f\u8ba4\u5f97\u82f1\u6587\u7684\u957f\u76f8\u7684\u554a\uff01\u4e0a\u9762\u4e24\u6bb5\u5b98\u65b9\u89e3\u91ca\uff0c\u9664\u4e86\u5c5e\u6027\u672c\u8eab\uff0c\u6839\u672c\u5c31\u6ca1\u6709<code>object<\/code>\u8fd9\u4e2a\u5355\u8bcd\u51fa\u73b0\u8fc7\uff0c\u5982\u4f55\u89e3\u91ca<code>object<\/code>\u4e3a\u4f55\u7269\uff1f<\/p>\n<p>\u8c01\u8bf4\u89e3\u91ca\u201c\u83ca\u82b1\u201d\u5c31\u4e00\u5b9a\u8981\u51fa\u73b0\u201c\u82b1\u201d\u7684\uff0c\u8fd9\u91cc\u7684<code>object<\/code>\u5b9e\u9645\u4e0a\u6307\u7684\u662f<code>replaced element<\/code>(\u66ff\u6362\u5143\u7d20)(<a href=\"http:\/\/www.w3.org\/TR\/CSS21\/conform.html#replaced-element\" target=\"_blank\">W3C<\/a>, <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/CSS\/Replaced_element\" target=\"_blank\">MDN<\/a>)\u3002<\/p>\n<p><strong>\u66ff\u6362\u5143\u7d20<\/strong><br \/>\n\u4e0d\u662f\u6240\u6709\u5143\u7d20\u90fd\u53eb\u201c\u66ff\u6362\u5143\u7d20\u201d\u3002\u5728CSS\u4e2d\uff0c\u201c\u66ff\u6362\u5143\u7d20\u201d\u6307\u7684\u662f\uff08\u5f15\u7528\u81ea<a href=\"http:\/\/openwares.net\/internet\/css_replaced_element.html\" target=\"_blank\">\u8fd9\u91cc<\/a>\uff09\uff1a<\/p>\n<blockquote><p>\u5176\u5185\u5bb9\u4e0d\u53d7CSS\u89c6\u89c9\u683c\u5f0f\u5316\u6a21\u578b\uff08\u4e2d\u6587\u91ca\u4e49\u53c2\u89c1<a href=\"http:\/\/openwares.net\/internet\/css_visual_formatting_model.html\" target=\"_blank\">\u8fd9\u91cc<\/a>\uff09\u63a7\u5236\u7684\u5143\u7d20\uff0c\u6bd4\u5982<code>image<\/code>, \u5d4c\u5165\u7684\u6587\u6863(<code>iframe<\/code>\u4e4b\u7c7b)\u6216\u8005<code>applet<\/code>\u3002\u6bd4\u5982\uff0c<code>img<\/code>\u5143\u7d20\u7684\u5185\u5bb9\u901a\u5e38\u4f1a\u88ab\u5176<code>src<\/code>\u5c5e\u6027\u6307\u5b9a\u7684\u56fe\u50cf\u66ff\u6362\u6389\u3002\u66ff\u6362\u5143\u7d20\u901a\u5e38\u6709\u5176\u56fa\u6709\u7684\u5c3a\u5bf8\uff1a\u4e00\u4e2a\u56fa\u6709\u7684\u5bbd\u5ea6\uff0c\u4e00\u4e2a\u56fa\u6709\u7684\u9ad8\u5ea6\u548c\u4e00\u4e2a\u56fa\u6709\u7684\u6bd4\u7387\u3002\u6bd4\u5982\u4e00\u5e45\u4f4d\u56fe\u6709\u56fa\u6709\u7528\u7edd\u5bf9\u5355\u4f4d\u6307\u5b9a\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\uff0c\u4ece\u800c\u4e5f\u6709\u56fa\u6709\u7684\u5bbd\u9ad8\u6bd4\u7387\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5176\u4ed6\u6587\u6863\u4e5f\u53ef\u80fd\u6ca1\u6709\u56fa\u6709\u7684\u5c3a\u5bf8\uff0c\u6bd4\u5982\u4e00\u4e2a\u7a7a\u767d\u7684html\u6587\u6863\u3002<\/p>\n<p>CSS\u6e32\u67d3\u6a21\u578b\u4e0d\u8003\u8651\u66ff\u6362\u5143\u7d20\u5185\u5bb9\u7684\u6e32\u67d3\u3002\u8fd9\u4e9b\u66ff\u6362\u5143\u7d20\u7684\u5c55\u73b0\u72ec\u7acb\u4e8eCSS\u3002<code>object<\/code>, <code>video<\/code>, <code>textarea<\/code>, <code>input<\/code>\u4e5f\u662f\u66ff\u6362\u5143\u7d20\uff0c<code>audio<\/code>\u548c<code>canvas<\/code>\u5728\u67d0\u4e9b\u7279\u5b9a\u60c5\u5f62\u4e0b\u4e3a\u66ff\u6362\u5143\u7d20\u3002<\/p>\n<p>\u4f7f\u7528CSS\u7684<code>content<\/code>\u5c5e\u6027\u63d2\u5165\u7684\u5bf9\u8c61\u662f\u533f\u540d\u66ff\u6362\u5143\u7d20\u3002<\/p><\/blockquote>\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u672c\u6587\u7684<code>object-position<\/code>\u548c<code>object-fit<\/code>\u53ea\u9488\u5bf9\u66ff\u6362\u5143\u7d20\u6709\u4f5c\u7528\uff0c\u4e5f\u5c31\u662f<code>form<\/code>\u8868\u5355\u5bb6\u65cf\u63a7\u4ef6\u7cfb\u5217\uff0c\u8001\u724c\u52b2\u65c5<code>img<\/code>\u56fe\u7247\uff0cHTML5\u65b0\u8d35<code>video<\/code>\u89c6\u9891\u7b49\u5143\u7d20\uff08\u636e\u6211\u6d4b\u8bd5\uff0cSVG\u5143\u7d20\u8c8c\u4f3c\u4e0d\u652f\u6301\uff0c\u4f46\u53ef\u4ee5\u4f5c\u4e3a<code>src<\/code>\u66ff\u6362\u5185\u5bb9\u51fa\u73b0\uff09\u3002<\/p>\n<h3>\u4e09\u3001\u4e3a\u4f55\u9700\u8981object-position\/object-fit?<\/h3>\n<p>\u4ece\u4e0a\u9762\u201c\u66ff\u6362\u5143\u7d20\u201d\u7684\u5b98\u65b9\u89e3\u91ca\u53ef\u4ee5\u770b\u51fa\uff0c\u66ff\u6362\u5143\u7d20\u901a\u5e38\u90fd\u6709\u7740\u56fa\u5b9a\u7684\u5c3a\u5bf8\uff0c\u6bd4\u65b9\u8bf4\u56fe\u7247\uff0c\u4f8b\u5982\uff0c\u4e0b\u9762\u8fd9\u5f20\u773c\u719f\u80fd\u8be6\u7684\u56fe\u7247\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/study\/s\/s256\/mm1.jpg\" width=\"256\" height=\"191\" alt=\"\u773c\u719f\u80fd\u8be6\u7684\u56fe\u7247\" class=\"mt10\" \/><\/p>\n<p>\u5176\u539f\u672c\u7684\u5c3a\u5bf8\u662f256*191\u50cf\u7d20\u3002\u4f46\u662f\uff0c\u73b0\u4ee3web\u663e\u793a\u73af\u5883\u4e07\u53d8\uff0c\u54cd\u5e94\u5f0f\u5e03\u5c40(\u9002\u914d\u79fb\u52a8\u7aef)\u3001\u534a\u54cd\u5e94\u5e03\u5c40(\u5bbd\u7a84\u5c4f\u9002\u914d)\u4ee5\u53ca\u4f20\u7edf\u6d41\u4f53\u5e03\u5c40\uff08\u4efb\u610f\u5bbd\u5ea6\u6c34\u5e73\u81ea\u9002\u5e94\uff09\u90fd\u6bd4\u8f83\u5e38\u89c1\uff0c\u7ed3\u679c\uff0c\u5728\u5904\u7406\u8fd9\u4e9b\u6709\u7740\u56fa\u5b9a\u5c3a\u5bf8\u7684\u5143\u7d20\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u9047\u5230\u969c\u788d\uff0c\u4f8b\u5982\uff0c\u4e00\u4e2a2:1\u7684\u89c6\u9891\uff0c\u6c38\u8fdc\u8981\u7b49\u6bd4\u4f8b\u5145\u6ee1\u5bb9\u5668\uff0c\u4f46\u662f\uff0c\u968f\u7740\u6d4f\u89c8\u5668\u5bbd\u5ea6\u4e0d\u4e00\u6837\uff0c\u5bb9\u5668\u7684\u957f\u5bbd\u6bd4\u6709\u53ef\u80fd\u5c0f\u4e8e2\uff0c\u4e5f\u6709\u53ef\u80fd\u5927\u4e8e2. \u4f60\u8bf4\uff0c\u4f60\u80fd\u8f7b\u677e\u5b9e\u73b0\u5c0f\u4e8e\u6bd4\u4f8b2\u65f6\u5019\uff0c\u89c6\u9891\u5bbd\u5ea6100%\uff1b\u6bd4\u4f8b\u5927\u4e8e2\u7684\u65f6\u5019\uff0c\u9ad8\u5ea6100%\u5417\uff1f<\/p>\n<p>\u663e\u7136\uff0c\u5f88\u9ebb\u70e6\uff0c\u6700\u540e\u5927\u591a\u8fd8\u662f\u4f7f\u7528JS\u53bb\u628a\u63a7\uff08\u5982<a href=\"http:\/\/www.imqq.com\/\" target=\"_blank\">\u56fd\u9645\u7248QQ\u9996\u9875<\/a>\u4e2d\u7684\u89c6\u9891\u5904\u7406 &#8211; \u6d4f\u89c8\u5668\u5bbd\u5ea6\u4efb\u610f\u62c9\u4f38\uff09\u3002\u6b63\u662f\u4e3a\u4e86\u5e94\u5bf9\u7c7b\u4f3c\u8fd9\u6837\u7684\u54cd\u5e94\u5f0f\u9700\u6c42\uff0c<code>object-fit<\/code>\u548c<code>object-position<\/code>\u624d\u5e94\u8fd0\u800c\u751f\u3002<\/p>\n<p><code>object-fit<\/code>\u548c<code>object-position<\/code>\u4e4b\u95f4\u7684\u5173\u7cfb\u6709\u70b9\u7c7b\u4f3c\u4e8e<code>background-size<\/code>\u548c<code>background-position<\/code>\uff0c\u65e0\u8bba\u662f\uff0c\u5173\u7cfb\u8fd8\u662f\u5c5e\u6027\u503c\uff0c\u90fd\u6709\u76f8\u4f3c\u4e4b\u5904\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u5728\u7406\u89e3<code>object-fit<\/code>\u548c<code>object-position<\/code>\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u6216\u591a\u6216\u5c11\u6620\u5c04<code>background-size<\/code>\u548c<code>background-position<\/code>\u3002<\/p>\n<h3>\u56db\u3001object-fit\u7406\u89e3<\/h3>\n<p>CSS3 <code>background-size<\/code>\u51fa\u73b0\u7684\u6bd4\u8f83\u65e9\uff0c\u5927\u5bb6\u5e94\u8be5\u77e5\u9053\u5176\u652f\u6301\u7684\u4e00\u4e9b\u503c\uff0c\u9664\u4e86\u6570\u503c\u4e4b\u5916\uff0c\u5176\u8fd8\u652f\u6301\u51e0\u4e2a\u5173\u952e\u5b57\uff0c\u4f8b\u5982\uff1a<code>cover<\/code>, <code>contain<\/code>\u7b49\u3002<\/p>\n<p><code>object-fit<\/code>\u4e5f\u662f\u7c7b\u4f3c\u7684\uff0c\u4f46\u8fd8\u662f\u6709\u4e9b\u5dee\u5f02\uff0c\u5177\u4f53\u67095\u4e2a\u503c\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>.fill { object-fit: fill; }\n.contain { object-fit: contain; }\n.cover { object-fit: cover; }\n.none { object-fit: none; }\n.scale-down { object-fit: scale-down; }<\/pre>\n<\/div>\n<p>\u6bcf\u4e2a\u5c5e\u6027\u503c\u7684\u5177\u4f53\u542b\u4e49\u5982\u4e0b\uff08\u81ea\u5df1\u7406\u89e3\u7684\u767d\u8bdd\u6587\uff0c\u5b98\u65b9\u91ca\u4e49\u89c1\u5b98\u7f51\uff09\uff1a<\/p>\n<ul>\n<li><strong>fill<\/strong>: \u4e2d\u6587\u91ca\u4e49\u201c\u586b\u5145\u201d\u3002\u9ed8\u8ba4\u503c\u3002\u66ff\u6362\u5185\u5bb9\u62c9\u4f38\u586b\u6ee1\u6574\u4e2acontent box, \u4e0d\u4fdd\u8bc1\u4fdd\u6301\u539f\u6709\u7684\u6bd4\u4f8b\u3002<\/li>\n<li><strong>contain<\/strong>: \u4e2d\u6587\u91ca\u4e49\u201c\u5305\u542b\u201d\u3002\u4fdd\u6301\u539f\u6709\u5c3a\u5bf8\u6bd4\u4f8b\u3002\u4fdd\u8bc1\u66ff\u6362\u5185\u5bb9\u5c3a\u5bf8\u4e00\u5b9a\u53ef\u4ee5\u5728\u5bb9\u5668\u91cc\u9762\u653e\u5f97\u4e0b\u3002\u56e0\u6b64\uff0c\u6b64\u53c2\u6570\u53ef\u80fd\u4f1a\u5728\u5bb9\u5668\u5185\u7559\u4e0b\u7a7a\u767d\u3002<\/li>\n<li><strong>cover<\/strong>: \u4e2d\u6587\u91ca\u4e49\u201c\u8986\u76d6\u201d\u3002\u4fdd\u6301\u539f\u6709\u5c3a\u5bf8\u6bd4\u4f8b\u3002\u4fdd\u8bc1\u66ff\u6362\u5185\u5bb9\u5c3a\u5bf8\u4e00\u5b9a\u5927\u4e8e\u5bb9\u5668\u5c3a\u5bf8\uff0c\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u81f3\u5c11\u6709\u4e00\u4e2a\u548c\u5bb9\u5668\u4e00\u81f4\u3002\u56e0\u6b64\uff0c\u6b64\u53c2\u6570\u53ef\u80fd\u4f1a\u8ba9\u66ff\u6362\u5185\u5bb9\uff08\u5982\u56fe\u7247\uff09\u90e8\u5206\u533a\u57df\u4e0d\u53ef\u89c1\u3002<\/li>\n<li><strong>none<\/strong>: \u4e2d\u6587\u91ca\u4e49\u201c\u65e0\u201d\u3002\u4fdd\u6301\u539f\u6709\u5c3a\u5bf8\u6bd4\u4f8b\u3002\u540c\u65f6\u4fdd\u6301\u66ff\u6362\u5185\u5bb9\u539f\u59cb\u5c3a\u5bf8\u5927\u5c0f\u3002<\/li>\n<li><strong>scale-down<\/strong>: \u4e2d\u6587\u91ca\u4e49\u201c\u964d\u4f4e\u201d\u3002\u5c31\u597d\u50cf\u4f9d\u6b21\u8bbe\u7f6e\u4e86<strong>none<\/strong>\u6216<strong>contain<\/strong>, \u6700\u7ec8\u5448\u73b0\u7684\u662f\u5c3a\u5bf8\u6bd4\u8f83\u5c0f\u7684\u90a3\u4e2a\u3002<\/li>\n<\/ul>\n<p>\u5047\u8bbe\u6211\u4eec\u4f7f\u7528\u7684\u539f\u59cb\u56fe\u7247\u662f\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/study\/s\/s256\/mm1.jpg\" width=\"256\" height=\"191\" alt=\"\u773c\u719f\u80fd\u8be6\u7684\u56fe\u7247\" class=\"mt10\" \/><\/p>\n<p>\u5bb9\u5668\u7684\u5c3a\u5bf8\u662f160*160, \u80cc\u666f\u8272\u662f\u7070\u84dd\u8272\uff0c\u540c\u65f6\uff0c\u6d4b\u8bd5\u7684\u56fe\u7247\u9ad8\u5bbd\u8bbe\u7f6e\u4e3a100%, \u5982\u4e0bCSS\u4ee3\u7801\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>.box { width: 160px; height: 160px; background-color: #beceeb; }\n.box > img { width: 100%; height: 100%; }<\/pre>\n<\/div>\n<p>\u7ed3\u679c\uff0c\u5404\u4e2a\u5c5e\u6027\u503c\u7684\u8868\u73b0\u5982\u4e0b\u622a\u56fe\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201801\/2018-01-08_002019.png\" width=\"350\" height=\"407\" alt=\"object-fit\u56db\u4e2a\u5c5e\u6027\u503c\u6548\u679c\u622a\u56fe\" class=\"alignnone\" \/><\/p>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a class=\"a_link\" href=\"http:\/\/www.zhangxinxu.com\/study\/201503\/css3-object-fit.html\" target=\"_blank\">CSS3 object-fit\u5c5e\u6027\u503c\u8868\u73b0Demo<\/a><\/p>\n<p>\u5927\u5bb6\u53ef\u4ee5\u5bf9\u7167\u793a\u610f\u611f\u53d7\u4e0b\uff0c\u4ec0\u4e48\u662f\u5185\u5bb9\u62c9\u4f38(<code>fill<\/code>)\uff0c\u4ec0\u4e48\u662f\u5185\u5bb9\u5168\u90e8\u90fd\u663e\u793a(<code>contain<\/code>)\uff0c\u4ec0\u4e48\u662f\u5bb9\u5668\u6ca1\u6709\u7559\u767d(<code>cover<\/code>)\uff0c\u4ec0\u4e48\u662f\u8be5\u591a\u5927\u5c31\u591a\u5927(<code>none<\/code>)\u3002<\/p>\n<p>\u65b0\u57a3\u7ed3\u8863\uff0c\u7b49\u7b49\uff0c\u7b49\u4e00\u4e0b\uff01<code>scale-down<\/code>\u5462\uff1f<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/dengyixia.jpg\" width=\"250\" height=\"141\" alt=\"\u65b0\u6052\u7ed3\u8863 \u7b49\u4e00\u4e0b\" class=\"mt10\" \/><\/p>\n<p><code>scale-down<\/code>\u7531\u4e8e\u5177\u6709\u52a8\u6001\u7279\u6027\uff0c\u6240\u4ee5\u8981\u4e13\u95e8\u5c55\u793a\u4e0b\u3002\u5b9e\u9645\u7684\u66ff\u6362\u5185\u5bb9\u8868\u73b0\u662f<strong>none<\/strong>\u548c<strong>contain<\/strong>\u6700\u7ec8\u5c3a\u5bf8\u5c0f\u7684\u90a3\u4e2a\u5c5e\u6027\u503c\u7684\u8868\u73b0\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u7684\u5bb9\u5668\u53ef\u4ee5<code>resize<\/code>\u62c9\u4f38\uff0c\u6539\u53d8\u5176\u5c3a\u5bf8\uff0c\u5219\u5f53\u5bb9\u5668\u5c3a\u5bf8\u6bd4256*191\u5c0f\u7684\u65f6\u5019\uff0c\u4e5f\u5c31\u662f\u5bb9\u5668\u6bd4\u66ff\u6362\u5185\u5bb9\uff08\u8fd9\u91cc\u7684\u56fe\u7247\uff09\u5b9e\u9645\u5c3a\u5bf8\u5c0f\u7684\u65f6\u5019\uff0c\u6548\u679c\u8ddf<code>contain<\/code>\u4e00\u81f4\uff0c\u56e0\u4e3a\u6b64\u65f6<code>contain<\/code>\u7684\u5b9e\u9645\u5c55\u793a\u5c3a\u5bf8\u6bd4<code>none<\/code>\u5c0f\u3002\u5982\u4e0b\u622a\u56fe\u793a\u610f\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/2015-03-15_170250.png\" width=\"435\" height=\"471\" alt=\"scale-down\u548ccontain\u8868\u73b0\u4e00\u81f4\" class=\"alignnone\" \/><\/p>\n<p>\u4f46\u662f\uff0c\u5f53\u5bb9\u5668\u5c3a\u5bf8\u62c9\u4f38\u5230\u6bd4\u56fe\u7247\u5b9e\u9645\u5c3a\u5bf8\u8fd8\u5927\u7684\u65f6\u5019\uff0c\u5219\u6548\u679c\u8ddf<code>none<\/code>\u4e00\u81f4\uff0c\u56e0\u4e3a\u6b64\u65f6<code>none<\/code>\u7684\u5b9e\u9645\u5c55\u793a\u5c3a\u5bf8\u6bd4<code>contain<\/code>\u5c0f\u3002\u5982\u4e0b\u622a\u56fe\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/2015-03-15_170401.png\" width=\"592\" height=\"554\" alt=\"scale-down\u548cnone\u6548\u679c\u4e00\u81f4\" class=\"alignnone\" \/><\/p>\n<p>\u81f3\u6b64\uff0c\u6211\u4eec\u5927\u81f4\u4e86\u89e3\u4e86<code>object-fit<\/code>\u5404\u4e2a\u5c5e\u6027\u503c\u7684\u8868\u73b0\uff0c\u4f60\u4ee5\u4e3a\u4e8b\u60c5\u5c31\u7ed3\u675f\u4e86\u5417\uff1f\u4e0d\u662f\uff0c\u8fd9\u53ea\u662f\u4e2a\u5f00\u59cb\u3002<\/p>\n<p>\u96be\u9053\u5927\u5bb6\u6ca1\u6709\u5bf9\u56fe\u7247\u7684\u8868\u73b0\u8868\u793a\u7591\u60d1\u5417\uff1f<\/p>\n<p>\u6211\u660e\u660e\u56fe\u7247\u8bbe\u7f6e\u4e86\u5bbd\u9ad8\u90fd\u662f100%, \u4e3a\u4f55\u8c8c\u4f3c\u5b9e\u9645\u6548\u679c\u9664\u4e86(<code>fill<\/code>)\uff0c\u4f3c\u4e4e\u90fd\u65e0\u89c6\u4e86\u8fd9\u4e9b\u58f0\u660e\u5462\uff1f\u56fe\u7247\u7684\u5b9e\u9645\u5c3a\u5bf8\u53d8\u5c0f\u6216\u53d8\u5927\u4e86\uff0c\u800c\u4e0d\u662f\u6839\u636e\u5bb9\u5668\u5b9e\u9645\u5c3a\u5bf8\u8d70\u5462\uff1f<\/p>\n<div class=\"zxx_code\">\n<pre>.box > img { width: 100%; height: 100%; }<\/pre>\n<\/div>\n<p>\u4f60\u6709\u6ca1\u6709\u8fd9\u6837\u7684\u7591\u60d1\uff1f\u6709\u6728\u6709\uff01\uff01<\/p>\n<p>\u5982\u679c\u6709\uff0c\u606d\u559c\u4f60\uff0c\u6765\u5bf9\u5730\u65b9\u4e86\uff0c\u8fd9\u8868\u660e\u4f60\u8fd8\u6ca1\u6709\u5bf9\u4e00\u4e9b\u6982\u5ff5\u8ba4\u8bc6\u6e05\u695a\u3002<\/p>\n<ol>\n<li><code>img<\/code>\u662f\u4e2a\u5143\u7d20\uff0c\u4e14\u662f\u4e2a\u66ff\u6362\u5143\u7d20\uff0c\u8fd9\u4e2a\u901a\u8fc7\u4e0a\u9762\u7684\u5b66\u4e60\u5e94\u8be5\u90fd\u77e5\u9053\uff1b<\/li>\n<li>\u4e00\u4e2a\u56fe\u7247\uff0c\u5982\u679c\u6ca1\u6709<code>src<\/code>\uff0c\u5b83\u4f9d\u7136\u662f\u4e2a\u66ff\u6362\u5143\u7d20\uff0c\u5b83\u5728\u6d4f\u89c8\u5668\u4e2d\u7684\u89e3\u6790\u4f9d\u7136\u662f\u6b63\u786e\u7684\uff1b\n<div class=\"zxx_code\">\n<pre>&lt;img><\/pre>\n<\/div>\n<\/li>\n<li><code>src<\/code>\u6307\u5411\u7684\u56fe\u7247\u5c5e\u4e8e\u66ff\u6362\u5185\u5bb9\uff0c\u6ce8\u610f\uff0c\u8fd9\u4e2a\u66ff\u6362\u5185\u5bb9\u548c\u8fd9\u4e2a<code>img<\/code>\u66ff\u6362\u5143\u7d20\u662f\u58f3\u5b50\u4e0e\u5185\u5bb9\u7684\u5173\u7cfb\uff0c<strong>\u4e24\u8005\u662f\u72ec\u7acb\u7684<\/strong>\u3002\u5728CSS2.1\u65f6\u4ee3\uff0c\u58f3\u5b50\u7684\u5b9e\u9645\u5c3a\u5bf8\uff08\u5982\u679c\u6ca1\u6709CSS\u6216HTML\u8bbe\u7f6e\uff09\uff0c\u5219\u662f\u8ddf\u968f\u5185\u5bb9\u7684\u5b9e\u9645\u5c3a\u5bf8\uff0c\u56e0\u6b64\uff0c\u7f51\u9875\u52a0\u8f7d\u7684\u65f6\u5019\uff0c\u6211\u4eec\u4f1a\u770b\u5230\u56fe\u7247\u5360\u636e\u7684\u9ad8\u5ea6\u4ece0\u5230\u56fe\u7247\u5b9e\u9645\u9ad8\u5ea6\u8df3\u52a8\u7684\u8fc7\u7a0b\uff1b\u5982\u679c\u58f3\u5b50\uff0c\u4e5f\u5c31\u662f<code>img<\/code>\u6709\u5c3a\u5bf8\u9650\u5236\uff0c\u5219\u66ff\u6362\u5185\u5bb9<code>fill<\/code>\u62c9\u4f38\u9002\u5e94\u4e8e <code>img<\/code>\u66ff\u6362\u5143\u7d20\u7684\u8bbe\u5b9a\u5c3a\u5bf8\u3002\u603b\u800c\u8a00\u4e4b\uff0c\u58f3\u5b50\u4e0e\u5185\u5bb9\u7684\u5c3a\u5bf8\u6c38\u8fdc\u662f\u4e00\u6837\u7684\u3002\u4e8e\u662f\uff0c\u6211\u4eec\u5c31\u4f1a\u8bef\u8ba4\u4e3a\u56fe\u7247\u5c31\u662f\u90a3\u4e2a\u56fe\u7247\uff0c\u552f\u4e00\u7684\u5b58\u5728\uff0c\u5bfc\u81f4\u6211\u4eec\u7406\u89e3<code>object-fit<\/code>\u7684\u7279\u6027\u8868\u73b0\u51fa\u73b0\u4e86\u969c\u788d\u3002<\/li>\n<li>\u5728CSS3\u65f6\u4ee3\uff0c<code>object-fit<\/code>\u7684\u4e16\u754c\u91cc\uff0c<code>object-fit<\/code>\u63a7\u5236\u7684\u6c38\u8fdc\u662f\u66ff\u6362\u5185\u5bb9\u7684\u5c3a\u5bf8\u8868\u73b0\uff0c\u6ce8\u610f\uff0c\u662f\u66ff\u6362\u5185\u5bb9\u7684\u5c3a\u5bf8\u8868\u73b0\uff0c\u4e0d\u662f<code>img<\/code>\u66ff\u6362\u5143\u7d20\u3002\u6216\u8005\u8fd9\u4e48\u8bb2\u5427\uff0c\u6211\u4eec\u5bf9<code>img<\/code>\u8bbe\u7f6e\uff1a\n<div class=\"zxx_code\">\n<pre>.box > img { width: 100%; height: 100%; }<\/pre>\n<\/div>\n<p>\u5b9e\u9645\u4e0a\u662f\u63a7\u5236<code>img<\/code>\u8fd9\u4e2a\u5143\u7d20\u7684\uff0c\u8fd9\u4e2a\u58f3\u5b50\u7684\u5c3a\u5bf8\u662f100%\u6491\u6ee1\u5bb9\u5668\u3002\u4e0a\u9762\u622a\u56fe\u76845\u4e2a\u793a\u4f8b\u7684\u56fe\u7247\u5b9e\u9645\u4e0a\u90fd\u662f100%\u62c9\u4f38\u4e0e\u5bb9\u5668\u7684\uff1b\u4e4b\u6240\u4ee5\u5b9e\u9645\u7684\u56fe\u7247\u5185\u5bb9\u6ca1\u6709\u62c9\u4f38\uff0c\u662f\u56e0\u4e3a\u53d7<code>object-fit<\/code>\u63a7\u5236\uff0c<code>object-fit<\/code>\u63a7\u5236\u4e86<code>src<\/code>\u5bf9\u5e94\u7684\u66ff\u6362\u5185\u5bb9\u7684\u5c3a\u5bf8\uff0c\u6216\u8005\u5305\u542b\uff0c\u6216\u8005\u8986\u76d6\u3002<\/li>\n<li>\u4e4b\u6240\u4ee5<code>object-fit:contain<\/code>\u4f1a\u900f\u660e\u7559\u767d\uff0c\u662f\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u5bf9\u58f3\u5b50<code>img<\/code>\u8bbe\u7f6e\u80cc\u666f\u8272\uff0c\u5047\u8bbe\u6211\u4eec\u7ed9\u58f3\u5b50<code>img<\/code>\u589e\u52a0\u4e2a\u7ea2\u8272\u80cc\u666f\uff0c\u5927\u5bb6\u5c31\u4f1a\u660e\u767d\u6211\u8bf4\u7684\u610f\u601d\u4e86\uff1a\n<div class=\"zxx_code\">\n<pre>.box > img { width: 100%; height: 100%; <span style=\"color:#cd0000;\">background-color: #cd0000;<\/span> }<\/pre>\n<\/div>\n<p>\u6548\u679c\u5982\u4e0b\u622a\u56fe\uff0c\u4f1a\u53d1\u73b0\uff0c\u539f\u6765\u7684\u900f\u660e\u7559\u767d\u73b0\u5728\u662f\u7ea2\u8272\u80cc\u666f\uff0c\u8bf4\u660e\u4e86\u4ec0\u4e48\uff1f\u8bf4\u660e<code>img<\/code>\u66ff\u6362\u5143\u7d20\u548c<code>src<\/code>\u66ff\u6362\u5185\u5bb9\u662f\u4e24\u4e2a\u72ec\u7acb\u4f53\u3002<code>img<\/code>\u66ff\u6362\u5143\u7d20\u53d7\u5230\u4e86CSS <code>100%<\/code>\u62c9\u4f38\u63a7\u5236\uff08\u6240\u4ee5\u7ea2\u8272\u80cc\u666f\u5145\u6ee1\u5bb9\u5668\uff09\uff0c<code>src<\/code>\u66ff\u6362\u5185\u5bb9\u4e5f\u53d7\u5230\u4e86<code>object-fit<\/code>\u5c55\u793a\u63a7\u5236\u3002\u5927\u5bb6\u5404\u53f8\u5176\u804c\uff0c\u6ca1\u6709\u4ec0\u4e48\u8986\u76d6\u51b2\u7a81\uff01<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201801\/2018-01-08_003606.png\" width=\"311\" height=\"298\" alt=\"\u80cc\u666f\u8272\u5360\u636e\u533a\u57df\u5927\u5c0f\" class=\"alignnone\" \/>\n<\/li>\n<\/ol>\n<hr>\n<p>\u4f60\u4ee5\u4e3a\u7406\u89e3\u4e86<code>object-fit<\/code>\u7684\u884c\u4e3a\u8868\u73b0\u5c31\u7ed3\u675f\u4e86\u5417\uff1f\u624d\u602a\u5462\uff01<\/p>\n<p>\u76ee\u524d\uff0cIE\u6d4f\u89c8\u5668\u5e76\u4e0d\u652f\u6301<code>object-fit<\/code>\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201801\/2018-01-08_004648.png\" width=\"560\" height=\"273\" alt=\"object-fit\u517c\u5bb9\u6027\u622a\u56fe\" class=\"alignnone\" \/><\/p>\n<p><code>object-fit<\/code>\u597d\u68d2\u68d2\uff0c\u6211\u5f88\u559c\u6b22\uff0c\u5974\u5bb6\u5f88\u60f3\u8981\uff0c\u600e\u4e48\u529e\uff1f<\/p>\n<p>\u6709\u4e2a<a href=\"https:\/\/github.com\/anselmh\/object-fit\" target=\"_blank\">Github\u4e0a\u6709\u4e2apolyfill<\/a>, \u5927\u5bb6\u6709\u5174\u8da3\u53ef\u4ee5\u56f4\u89c2\u4e0b\u3002<\/p>\n<p>\u4f60\u4ee5\u4e3a\u77e5\u9053\u4e86\u5982\u4f55\u517c\u5bb9\u5904\u7406\u5c31\u7ed3\u675f\u4e86\u5417\uff1f\u6ca1\u9519\uff0c\u7ed3\u675f\u4e86\uff0c\u6211\u4eec\u770b<code>object-position<\/code>.<\/p>\n<h3>\u56db\u3001object-position\u7406\u89e3<\/h3>\n<p><code>object-position<\/code>\u8981\u6bd4<code>object-fit<\/code>\u5355\u7eaf\u7684\u591a\uff0c\u5c31\u662f\u63a7\u5236\u66ff\u6362\u5185\u5bb9\u4f4d\u7f6e\u7684\u3002\u9ed8\u8ba4\u503c\u662f<code>50% 50%<\/code>\uff0c\u4e5f\u5c31\u662f\u5c45\u4e2d\u6548\u679c\uff0c\u6240\u4ee5\uff0c\u65e0\u8bba\u4e0a\u4e00\u8282<code>object-fit<\/code>\u503c\u4e3a\u90a3\u822c\uff0c\u56fe\u7247\u90fd\u662f\u6c34\u5e73\u5782\u76f4\u5c45\u4e2d\u7684\u3002\u56e0\u6b64\uff0c\u4e0b\u6b21\u8981\u5b9e\u73b0\u5c3a\u5bf8\u5927\u5c0f\u4e0d\u56fa\u5b9a\u56fe\u7247\u7684\u5782\u76f4\u5c45\u4e2d\u6548\u679c\uff0c\u53ef\u4ee5\u8bd5\u8bd5<code>object-fit<\/code>.<\/p>\n<p>\u4e0e<code>background-position<\/code>\u7c7b\u4f3c\uff0c<code>object-position<\/code>\u7684\u503c\u7c7b\u578b\u4e3a<code>&lt;position&gt;<\/code>\u7c7b\u578b\u503c\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cCSS3\u7684\u76f8\u5bf9\u5750\u6807\u8bbe\u5b9a\u6837\u5f0f\u652f\u6301\u7684\u3002<\/p>\n<p>\u4f8b\u5982\u66ff\u6362\u5185\u5bb9\u4e00\u76f4\u5b9a\u4f4d\u5728\u5bb9\u5668\u7684\u53f3\u4e0b\u89d2\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>object-position: 100% 100%;<\/pre>\n<\/div>\n<p>\u4f8b\u5982\u66ff\u6362\u5143\u7d20\u76f8\u5bf9\u4e8e\u53f3\u4e0b\u89d220px 10px\u5730\u65b9\u5b9a\u4f4d\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>object-position: right 20px bottom 10px;<\/pre>\n<\/div>\n<p>\u4e0a\u9762\u7684\u8868\u73b0\u5728FireFox 36\u6d4f\u89c8\u5668\u4e0b\u7b26\u5408\u9884\u671f\uff0cChrome\u6ca1\u770b\u660e\u767d\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/2015-03-15_200620.png\" width=\"491\" height=\"287\" alt=\"FireFox 36\u4e0b\u76f8\u5bf9\u53f3\u4e0b\u89d2\u5b9a\u4f4d\u5750\u6807\" class=\"alignnone\" \/><\/p>\n<p>\u56e0\u6b64\uff0c\u5efa\u8bae\u8fd8\u662f\u4f7f\u7528calc\u5b9e\u73b0\u76f8\u5bf9\u53f3\u4e0b\u89d2\u5b9a\u4f4d\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>object-position: calc(100% - 20px) calc(100% - 10px);<\/pre>\n<\/div>\n<p>\u6b64\u65f6\uff0cChrome\u6d4f\u89c8\u5668\u7684\u8868\u73b0\u7b26\u5408\u9884\u671f\u4e86\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/2015-03-15_200930.png\" width=\"559\" height=\"281\" alt=\"Chrome\u6d4f\u89c8\u5668\u4e0b\u4f7f\u7528calc\u53f3\u4e0b\u89d2\u5b9a\u4f4d\" class=\"alignnone\" \/><\/p>\n<p>\u540c\u6837\u7684\uff0c<code>object-position<\/code>\u4e5f\u652f\u6301\u8d1f\u503c\uff0c\u7279\u5f81\u8868\u73b0\u4e0e<code>background-position<\/code>\u4e00\u81f4\u3002<\/p>\n<p>\u7531\u4e8e\u6bd4\u8f83\u5355\u7eaf\uff0c\u5c31\u4e0d\u5c55\u5f00\u4e86\u3002\u82e5\u6709\u5174\u8da3\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a class=\"a_link\" href=\"http:\/\/www.zhangxinxu.com\/study\/201503\/css3-object-position.html\" target=\"_blank\">CSS3 object-position\u4f7f\u7528\u793a\u610fDemo<\/a><\/p>\n<h3>\u4e94\u3001object-position\/object-fit\u5176\u4ed6\u5e94\u7528<\/h3>\n<p>CSS\u771f\u662f\u4e2a\u5f88\u5947\u602a\u7684\u4e1c\u897f\uff0c\u53d1\u660e\u5b83\u7684\u76ee\u7684\u53ef\u80fd\u662f\u4e3a\u4e86\u5b9e\u73b0A\u6548\u679c\uff0c\u7ed3\u679c\uff0c\u4e3a\u4e86\u5b9e\u73b0A\u6548\u679c\u6240\u5916\u6302\u7684\u4e00\u4e9b\u7279\u6027\u5f80\u5f80\u88ab\u7528\u6765\u505a\u5176\u4ed6\u4e8b\u60c5\u3002\u6bd4\u65b9\u8bf4<code>float<\/code>\u88ab\u5927\u8086\u7528\u6765\u5757\u72b6\u5e03\u5c40\uff0c\u6211\u89c9\u5f97<code>object-position\/object-fit<\/code>\u4e5f\u6709\u8fd9\u79cd\u8d8b\u52bf\u3002<\/p>\n<p>\u4e0a\u4e00\u8282\u63d0\u5230\u4e86\u6c34\u5e73\u5782\u76f4\u5c45\u4e2d\u5b9e\u73b0\uff0c\u76f4\u63a5\u4e00\u884cCSS\u58f0\u660e\u5c31\u641e\u5b9a\uff0c\u7b80\u5355\u5feb\u6377\uff0c\u4ee5\u540e\u8bf4\u4e0d\u5b9a\u4f1a\u70ed\u3002<\/p>\n<p>\u8fd8\u6709\u5c31\u662f\u4e0b\u9762\u8981\u4ecb\u7ecd\u7684img sprites\u5b9e\u73b0\u3002<\/p>\n<p>\u8981\u5b9e\u73b0<code>img<\/code> sprites\uff0c\u65b9\u6cd5\u5f88\u591a\uff1a<br \/>\n1. \u5916\u90e8\u5c3a\u5bf8\u5bb9\u5668<code>overflow:hidden<\/code>\u9650\u5236\uff0c\u91cc\u9762<code>&lt;img&gt;<\/code>\u6216<code>position<\/code>\u6216<code>margin<\/code>\u5b9a\u4f4d\u3002\u4f46\u8fd9\u79cd\u65b9\u6cd5\u9700\u89812\u5c42\u6807\u7b7e\uff0c\u9ebb\u70e6\u3002<br \/>\n2. \u5176\u5b9e\uff0c\u5f88\u65e9\u65f6\u5019\uff0c\u6211\u5c31\u5c1d\u8bd5\u8fc7\u4f7f\u7528<code>clip<\/code>\u5b9e\u73b0img sprites\u6548\u679c\uff0c\u53ef\u4ee51\u5c42\u6807\u7b7e\u5c31\u641e\u5b9a\u3002\u4f46\u662f\uff0c<code>&lt;img&gt;<\/code>\u5143\u7d20\u5fc5\u987b<code>position:absolute<\/code>. \u9ebb\u70e6\u3002<\/p>\n<p>OK, \u8fd9\u91cc\u8981\u4ecb\u7ecd\u7684img sprites\u5b9e\u73b0\u4e0d\u4ec5\u53ea\u9700\u8981\u4e00\u5c42<code>&lt;img&gt;<\/code>\u6807\u7b7e\uff0c\u800c\u4e14\u6ca1\u6709\u5176\u4ed6\u6761\u4ef6\u9650\u5236\uff0c\u6bd4\u4e4b\u524d\u7684\u65b9\u6cd5\u90fd\u8981\u7b80\u5355\u5f88\u591a\u3002\u56e0\u4e3a\u4ece\u4e0a\u9762\u8bf8\u591a\u793a\u4f8b\u53ef\u4ee5\u770b\u51fa\uff0c<code>object-fit<\/code>\u5929\u751f\u5916\u6302\u526a\u88c1\u529f\u80fd\u3002<\/p>\n<p>img sprites\u6211\u552f\u4e00\u60f3\u5230\u7684\u5e94\u7528\u573a\u666f\u662f\u5f53\u56fe\u7247\u662f\u52a8\u6001\u56fe\u7247\u7684\u65f6\u5019\uff0c\u4f8b\u5982\u9996\u9875\u7684slide\u5e7f\u544a\uff0c\u5927\u90e8\u5206\u60c5\u51b5\u4e0b<code>img<\/code> sprites\u662f\u6ca1\u6709\u5e94\u7528\u4ef7\u503c\u7684\uff0c\u53cd\u800c\u6dfb\u4e71\u3002\u8ddf<code>background<\/code> sprites\u76f8\u6bd4\u6ca1\u6709\u4efb\u4f55\u4f18\u52bf\uff0c\u81f3\u5c11\u6211\u662f\u6ca1\u770b\u51fa\u6765\u7684\u3002<\/p>\n<p>\u4f17\u4eba\uff1a\u90a3\u4f60\u8fd8\u8bb2\u6bdb\u7ebf\uff1f<img decoding=\"async\" src=\"http:\/\/mat1.gtimg.com\/www\/mb\/images\/face\/98.gif\" align=\"absmiddle\"><\/p>\n<p>\u5e94\u7528\u573a\u666f\u5343\u5343\u4e07\uff0c\u4e07\u4e00\u4ec0\u4e48\u65f6\u5019\u6b64\u65b9\u6cd5\u5c31\u8de9\u4e86\u4e00\u628a\u5462~~<\/p>\n<p>\u6211\u4eec\u4e0d\u59a8\u770b\u4e0b\u4e0b\u9762\u8fd9\u4e2a\u4efb\u610f\u6570\u5b57\u7ffb\u8f6c\u6548\u679c\uff1a<br \/>\n<video width=\"292\" height=\"112\" preload=\"auto\" autoplay=\"autoplay\" autobuffer loop=\"loop\"><source src='http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/Video_2015-03-15_214650.webm' type=\"video\/webm\" \/><source src='http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/Video_2015-03-15_214650.mp4' type=\"video\/mp4\" \/><\/video><\/p>\n<p>\u6211\u4eec\u4f7f\u7528\u7684sprites\u56fe\u7247\u662f\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.zhangxinxu.com\/study\/201503\/icons-ol.png\" width=\"40\" height=\"400\" alt=\"\u5e8f\u53f7sprites\" class=\"alignleft mr20\" \/><\/p>\n<p>\u6211\u4eec\u6709\u5982\u4e0bCSS\uff1a<\/p>\n<div class=\"zxx_code\" style=\"margin-left:60px;\">\n<pre>.num {\n    width: 40px; height: 40px;\n    object-fit: none;\n    object-position: 0 0;\n}\n.num0 {  }\n.num1 { object-position: 0 -40px; }\n.num2 { object-position: 0 -80px; }\n.num3 { object-position: 0 -120px; }\n.num4 { object-position: 0 -160px; }\n.num5 { object-position: 0 -200px; }\n.num6 { object-position: 0 -240px; }\n.num7 { object-position: 0 -280px; }\n.num8 { object-position: 0 -320px; }\n.num9 { object-position: 0 -360px; }<\/pre>\n<\/div>\n<p>\u4e8e\u662f\u6570\u5b571\u5bf9\u5e94\u7684\u5c31\u662f\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;img src=\"icons-ol.png\" class=\"num num1\"><\/pre>\n<\/div>\n<p>\u4e8e\u662f\u6570\u5b572\u5bf9\u5e94\u7684\u5c31\u662f\uff1a<\/p>\n<div class=\"zxx_code\">\n<pre>&lt;img src=\"icons-ol.png\" class=\"num num2\"><\/pre>\n<\/div>\n<p>\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a class=\"a_link\" href=\"http:\/\/www.zhangxinxu.com\/study\/201503\/css3-object-position-object-fit-img-sprites.html\" target=\"_blank\">object-position\/object-fit img sprites\u4e0e\u6570\u5b57\u7ffb\u52a8demo<\/a><\/p>\n<p>demo\u9875\u9762\u6587\u672c\u6846\u4f60\u4fee\u6539\u4e4b\u540e\uff0c\u56fe\u7247\u6570\u5b57\u4f1a\u8ddf\u7740\u53d8\u5316\uff0c\u4f8b\u5982\u6539\u6210999~<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/2015-03-15_221509.png\" width=\"374\" height=\"186\" alt=\"\u6587\u672c\u6846\u6570\u503c\u53d8\u5316\u56fe\u7247\u8ddf\u7740\u53d8\u5316\" class=\"alignnone\" \/><\/p>\n<p>img sprites\u548cbackground sprites\u5c31\u529f\u80fd\u548c\u80fd\u8017\u4e0a\u800c\u8a00\uff0c\u57fa\u672c\u4e0a\u662f\u4e00\u81f4\u7684\u3002\u4e0d\u8fc7\u4e00\u4e2aimg\u56fe\u7247\uff0c\u4e00\u4e2a\u662fimg\u80cc\u666f\u56fe\u7247\u3002\u524d\u8005\u517c\u5bb9\u6027\u6709\u5f85\u63d0\u9ad8\u3002\u6240\u4ee5\uff0c\u76ee\u524d\u6765\u770b\uff0c\u4f18\u52bf\u4e0d\u660e\u663e\u3002<\/p>\n<h3>\u516d\u3001\u6625\u6765\u4e86\uff0c\u6625\u6765\u4e86~<\/h3>\n<p>\u4e00\u5f00\u59cb\u6625\u6765\u4e86\u7684\u65f6\u5019\uff0c\u81ea\u5df1\u8fd8\u662f\u5f88\u5174\u594b\u7684\uff0c\u4ee5\u4e3a\u6625\u82b1\u79cb\u6708\u6765\u4e86\uff0c\u4f46\u662f\uff0c\u73b0\u5b9e\u662f\u6625\u56f0\u79cb\u4e4f\u3002\u5728\u6696\u6696\u7684\u7a7a\u8c03\u623f\u91cc\uff0c\u786c\u662f\u5728\u529e\u516c\u6905\u4e0a\u6253\u4e86\u4e24\u4e2a\u76f9\uff0c\u5206\u522b\u5728\u5348\u996d\u540e\u548c\u665a\u996d\u540e\u3002<\/p>\n<p>\u641e\u5230\u5199\u5230\u73b0\u5728\u624d\u5f00\u59cb\u7ed3\u5c3e\uff0c\u8fd9\u6548\u7387\u2026\u2026\u8fd8\u4e0d\u5982\u53bb\u9c7c\u5858\u629b\u4e24\u6746\u5b50~~<\/p>\n<p><span class=\"s\">\/\/zxx: \u8fd9\u91cc\u7701\u7565\u5e94\u8be5\u6253\u76f9\u65f6\u95f4\u5410\u69fd\u7684283\u4e2a\u5b57\u2026\u2026<\/span><\/p>\n<p>\u6700\u540e\uff0c\u611f\u8c22\u9605\u8bfb\uff0c\u6b22\u8fce\u4ea4\u6d41\uff01<\/p>\n<p>\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002<br \/>\n\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=4676\">http:\/\/www.zhangxinxu.com\/wordpress\/?p=4676<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><a href=\"http:\/\/www.zhangxinxu.com\/wordpress\/?p=4676\" title=\"\u70b9\u51fb\u67e5\u770b\u672c\u6587\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/image.zhangxinxu.com\/image\/blog\/201503\/object-position-object-fit-cover.jpg\" width=\"550\" height=\"170\" class=\"imgpad mb10\" alt=\"\"><\/a><br \/>\n\u73b0\u4ee3web\u663e\u793a\u73af\u5883\u4e07\u53d8\uff0c\u54cd\u5e94\u5f0f\u5e03\u5c40(\u9002\u914d\u79fb\u52a8\u7aef)\u3001\u534a\u54cd\u5e94\u5e03\u5c40(\u5bbd\u7a84\u5c4f\u9002\u914d)\u4ee5\u53ca\u4f20\u7edf\u6d41\u4f53\u5e03\u5c40\uff08\u4efb\u610f\u5bbd\u5ea6\u6c34\u5e73\u81ea\u9002\u5e94\uff09\u90fd\u6bd4\u8f83\u5e38\u89c1\uff0c\u7ed3\u679c\uff0c\u5728\u5904\u7406\u8fd9\u4e9b\u6709\u7740\u56fa\u5b9a\u5c3a\u5bf8\u7684\u5143\u7d20\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u9047\u5230\u969c\u788d\uff0c\u4f8b\u5982\uff0c\u4e00\u4e2a2:1\u7684\u89c6\u9891\uff0c\u6c38\u8fdc\u8981\u7b49\u6bd4\u4f8b\u5145\u6ee1\u5bb9\u5668\uff0c\u4f46\u662f\uff0c\u968f\u7740\u6d4f\u89c8\u5668\u5bbd\u5ea6\u4e0d\u4e00\u6837\uff0c\u5bb9\u5668\u7684\u957f\u5bbd\u6bd4\u6709\u53ef\u80fd\u5c0f\u4e8e2\uff0c\u4e5f\u6709\u53ef\u80fd\u5927\u4e8e2. \u4f60\u8bf4\uff0c\u4f60\u80fd\u8f7b\u677e\u5b9e\u73b0\u5c0f\u4e8e\u6bd4\u4f8b2\u65f6\u5019\uff0c\u89c6\u9891\u5bbd\u5ea6100%\uff1b\u6bd4\u4f8b\u5927\u4e8e2\u7684\u65f6\u5019\uff0c\u9ad8\u5ea6100%\u5417\uff1f<\/p>\n<p>\u663e\u7136\uff0c\u5f88\u9ebb\u70e6\uff0c\u6700\u540e\u5927\u591a\u8fd8\u662f\u4f7f\u7528JS\u53bb\u628a\u63a7\u3002\u6b63\u662f\u4e3a\u4e86\u5e94\u5bf9\u7c7b\u4f3c\u8fd9\u6837\u7684\u54cd\u5e94\u5f0f\u9700\u6c42\uff0cobject-fit\u548cobject-position\u624d\u5e94\u8fd0\u800c\u751f\u2026\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[163,177,983,984,340,226],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/4676"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=4676"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/4676\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=4676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=4676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=4676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}