{"id":1565,"date":"2011-04-02T14:19:51","date_gmt":"2011-04-02T06:19:51","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1565"},"modified":"2018-01-01T23:22:34","modified_gmt":"2018-01-01T15:22:34","slug":"css-clip-rect","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2011\/04\/css-clip-rect\/","title":{"rendered":"CSS clip:rect\u77e9\u5f62\u526a\u88c1\u529f\u80fd\u53ca\u4e00\u4e9b\u5e94\u7528\u4ecb\u7ecd"},"content":{"rendered":"

by zhangxinxu<\/a> from http:\/\/www.zhangxinxu.com<\/a>
\n\u672c\u6587\u5730\u5740\uff1ahttp:\/\/www.zhangxinxu.com\/wordpress\/?p=1565<\/a><\/p>\n

\u4e00\u3001\u957f\u8bdd\u77ed\u8bf4<\/h3>\n

CSS\u4e2d\u6709\u4e00\u4e2a\u5c5e\u6027\u53eb\u505aclip<\/code>\uff0c\u4e3a\u4fee\u526a\uff0c\u526a\u88c1\u4e4b\u610f\u3002\u914d\u5408\u5176\u5c5e\u6027\u5173\u952e\u5b57rect<\/code>\u53ef\u4ee5\u5b9e\u73b0\u5143\u7d20\u7684\u77e9\u5f62\u88c1\u526a\u6548\u679c\u3002\u6b64\u5c5e\u6027\u5b89\u5b89\u7a33\u7a33\u5730\u5b58\u5728\u4e8eCSS2.1\u4e2d\uff0c\u4e14\u4f7f\u7528\u4e0a\u57fa\u672c\u4e0a\u6ca1\u6709\u7c7b\u4f3c\u4e8emax-height<\/code>\/display:table-cell<\/code>\u7b49\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002\u4f46\u662f\uff0c\u8c8c\u4f3c\u5927\u5bb6\u5f88\u5c11\u4f7f\u7528\u6b64\u5c5e\u6027\u3002\u6211\u603b\u7ed3\u4e86\u4e09\u70b9\u539f\u56e0\uff1a\u9996\u5148\u662f\u7406\u89e3\u4e0a\u6709\u4e9b\u95e8\u69db\uff1b\u4e8c\u662f\u5176\u4ed6\u4eba\u4f7f\u7528\u7684\u4e0d\u591a\uff1b\u4e09\u662f\u6b64\u5c5e\u6027\u529f\u80fd\u6548\u679c\u6709\u4e0d\u5c11\u66ff\u4ee3\u65b9\u6848\u3002\u8fd9\u79cd\u72b6\u6001\u6709\u4e9b\u7c7b\u4f3c\u4e8e\u666e\u901a\u7684\u8ba1\u7b97\u673a\u4f7f\u7528\u8005\u4f7f\u7528XP\u7cfb\u7edf\u7528\u5f97\u5f88\u4e0d\u9519\uff0c\u7136\u540e\u8ba9\u4ed6\u53bb\u4f7f\u7528Mac\u7cfb\u7edf\uff0c\u53ef\u80fd\u5c31\u4f1a\u56e0\u4e3a\u4f7f\u7528\u4e0d\u4e60\u60ef\u3001\u5176\u4ed6\u4eba\u4e0d\u600e\u4e48\u7528\u3001\u529f\u80fdXP\u7cfb\u7edf\u57fa\u672c\u90fd\u6709\u4e14\u652f\u6301\u66f4\u5e7f\u6cdb\u800c\u53c8\u56de\u5230XP\u7cfb\u7edf\u4e0a\u3002\u5b9e\u9645\u4e0a\uff0c\u54ea\u79cd\u64cd\u4f5c\u7cfb\u7edf\u66f4\u597d\u5462\uff1f\u6211\u60f3\u4e0d\u8a00\u800c\u55bb\u3002<\/p>\n

\u6240\u4ee5\uff0c\u6211\u4eec\u4f7f\u7528overflow<\/code>\u5b9e\u73b0\u751f\u786c\u7684\u526a\u88c1\u4e0e\u539f\u751f\u7684clip<\/code>\u526a\u88c1\u5c31\u6709\u4e9b\u7c7b\u4f3c\u4e8e\u4f7f\u7528XP\u7cfb\u7edf\u4e0eMac\u822c\u3002<\/p>\n

\u8001\u5b9e\u8bb2\uff0c\u6211\u81ea\u5df1\u4f7f\u7528\u7684\u4e5f\u4e0d\u591a\uff0c\u4ec5\u5728\u4e24\u5e74\u524d\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u89e3\u51b3\u4e00\u4e9b\u7279\u6b8a\u7684\u95ee\u9898\u5b66\u4e60\u5e76\u4f7f\u7528\u4e86\u8be5\u5c5e\u6027\u3002\u4e0a\u4e2a\u6708\u7684\u201cCSS \u76f8\u5bf9\/\u7edd\u5bf9(relative\/absolute)\u5b9a\u4f4d\u7cfb\u5217\uff08\u4e09\uff09<\/a>\u201d\u4e00\u6587\u4e2d\u7684\u53ef\u7528\u6027\u9690\u85cf\u90e8\u5206\u66fe\u51fa\u73b0\u4e86\u8be5\u5c5e\u6027\u7684\u5e94\u7528\uff0c\u5176\u4f5c\u7528\u5c31\u662f\u9875\u9762\u5143\u7d20\u7684\u53ef\u7528\u6027\u9690\u85cf\uff0c\u76f8\u5173CSS\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

\n
.hidden{\n    position:absolute;\n    clip: rect(1px 1px 1px 1px); \/* IE6, IE7 *\/<\/span>\n    clip: rect(1px, 1px, 1px, 1px);\n}<\/pre>\n<\/div>\n
\u6839\u636e\u6211\u81ea\u5df1\u7684\u6d4b\u8bd5\uff0c\u8c8c\u4f3c\u4e0a\u9762\u7684\u7b2c\u4e09\u884cCSS\u662f\u591a\u4f59\u7684\u3002\u4f46\u662f\uff0c\u8fd9\u91cc\u51fa\u73b0\u662f\u6709\u5176\u7406\u7531\u7684\uff0c\u4f46\u662f\u81ea\u5df1\u60f3\u4e0d\u51fa\u4e86\u4e2a\u7f18\u7531\uff0c\u8fd8\u671b\u4ed6\u4eba\u6307\u70b9\u8ff7\u6d25\u3002<\/p>\n
\u201c\u7f8e\u7279\u65af\u90a6\u5a01\uff0c\u4e0d\u8d70\u5bfb\u5e38\u8def\u201d\uff0c\u6b63\u56e0\u4e3a\u4f3c\u4e4e\u5927\u5bb6\u90fd\u5ffd\u7565\u4e86clip<\/code>\u5c5e\u6027\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u7a0d\u7a0d\u6316\u6398\u4e0bclip<\/code>\u7684\u5c5e\u6027\uff0c\u8ba9\u5927\u5bb6\u5f00\u59cb\u5173\u6ce8\u4e0e\u719f\u6089\u6b64\u5c5e\u6027\u3002\u987a\u5e26\u4e00\u53e5\uff0c\u8fd9\u4e0d\u662f\u53f7\u53ec\u5173\u5fc3\u4e2d\u534e\u7530\u56ed\u72ac\u8fd9\u79cd\u5671\u5934\u6210\u5206\u9887\u591a\u7684\u4e1c\u897f\uff0c\u800c\u662f\u5b9e\u5728\u5728\u7684\u53ef\u4ee5\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u5927\u653e\u5149\u5f69\u7684\u4e1c\u4e1c\u3002<\/p>\n
\u4e8c\u3001clip:rect\u5c5e\u6027\u4eb2\u5bc6\u63a5\u89e6<\/h3>\n
\u6839\u636eDreamweaver\u7684\u81ea\u52a8\u63d0\u793a\uff0cclip<\/code>\u6709\u5982\u4e0b\u53ef\u7528\u5c5e\u6027\u5173\u952e\u5b57\uff1a
\n\"clip\u5c5e\u6027\u652f\u6301\u7684\u5173\u952e\u5b57<\/p>\n
\u5176\u4e2d\uff0c\u636e\u8bf4\u7ee7\u627finherit<\/code>IE\u6d4f\u89c8\u5668\u662f\u4e0d\u652f\u6301\u7684\uff0c\u6240\u4ee5\u8be5\u5c5e\u6027\u5c31\u662f\u4e2a\u9171\u6cb9\u5e1d\uff1b\u7136\u540e\"auto\"<\/code>\u5c31\u662f\u4e0d\u526a\u88c1\u4e4b\u610f\uff0c\u9664\u4e86\u91cd\u7f6erect<\/code>\u7684\u4f5c\u7528\u5916\uff0c\u5176\u4e5f\u662f\u4e2a\u9171\u6cb9\u526f\u5e1d\uff1b\u6240\u4ee5\u771f\u6b63\u4e0a\u5f97\u4e86\u53f0\u9762\u5f20\u8138\u7684\u5c31\u662frect(top right bottom left)<\/code>\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u4e0b\u9762\u53ea\u8ba8\u8bbarect(top right bottom left)<\/code>\u8fd9\u53ae\u3002<\/p>\n
\u5c31\u987a\u5e8f\u4e0a\u800c\u8a00\uff0ctop \u2192 right \u2192 bottom \u2192 left<\/code>\uff0c\u5728CSS\u4e2d\u662f\u7edf\u4e00\u76f8\u627f\u7684\uff0c\u5c31\u50cf\u662fmargin\u7684\u56db\u4e2a\u503c\u7684\u987a\u5e8f\uff0cborder-width\u7b49\u7b49\u7684\u56db\u4e2a\u503c\u987a\u5e8f\u2014\u2014\u4ece\u5934\u9876\u4e0a\u5f00\u59cb\uff0c\u987a\u65f6\u9488\u65cb\u8f6c\u7684\u8bf4~~\u4e0d\u8fc7\u8fd9\u91cc\u7684\u56db\u4e2a\u503c\u662f\u4e0d\u53ef\u4ee5\u7f29\u5199\u7684\u3002<\/p>\n
\u5176\u4e2dtop right bottom left<\/code>\u8868\u793a\u5404\u4e2a\u4f4d\u7f6e\u7684\u5c5e\u6027\u503c\uff0c\u5c31\u50cf\u662fwidth:200px;<\/code>\u4e2d\u7684200px<\/code>\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u4f1a\u6709\u7c7b\u4f3c\u4e0b\u9762\u7684\u4f7f\u7528\uff1a<\/p>\n
\n
rect(30px 200px 200px 20px)<\/pre>\n<\/div>\n
\u90a3\u8fd9\u91cc\u7684top right bottom left<\/code>\u7a76\u7adf\u6307\u4ec0\u4e48\u7684\uff1f\u6211\u4eec\u8be5\u5982\u4f55\u7406\u89e3\u5462\uff1f<\/p>\n
\u5176\u5b9e\u662f\u8fd9\u6837\u7684\uff0ctop right bottom left<\/code>\u5206\u522b\u6307\u6700\u7ec8\u526a\u88c1\u53ef\u89c1\u533a\u57df\u7684\u4e0a\u8fb9\uff0c\u53f3\u8fb9\uff0c\u4e0b\u8fb9\u4e0e\u5de6\u8fb9\u3002\u800c\u6240\u6709\u7684\u6570\u503c\u90fd\u8868\u793a\u4f4d\u7f6e\uff0c\u4e14\u662f\u76f8\u5bf9\u4e8e\u539f\u59cb\u5143\u7d20\u7684\u5de6\u4e0a\u89d2\u800c\u8a00\u7684\u3002\u4e8e\u662f<\/p>\n
\n
rect(30px 200px 200px 20px)<\/pre>\n<\/div>\n
\u8868\u793a\u7684\u542b\u4e49\u5c31\u662f\uff1a\u6700\u7ec8\u526a\u88c1\u7684\u77e9\u5f62\u7684\u4e0a\u8fb9\u8ddd\u79bb\u539f\u59cb\u5143\u7d20\u7684\u4e0a\u8fb9\u7f1830\u50cf\u7d20\uff1b\u526a\u88c1\u77e9\u5f62\u7684\u53f3\u8fb9\u7f18\u8ddd\u79bb\u539f\u5143\u7d20\u5de6\u8fb9\u7f18\u7684\u8ddd\u79bb\u662f200\u50cf\u7d20\uff1b\u526a\u88c1\u77e9\u5f62\u7684\u4e0b\u8fb9\u7f18\u8ddd\u79bb\u539f\u5143\u7d20\u9876\u90e8\u7684\u8ddd\u79bb\u4e3a200\u50cf\u7d20\uff1b\u526a\u88c1\u77e9\u5f62\u7684\u5de6\u8fb9\u7f18\u8ddd\u79bb\u539f\u5143\u7d20\u5de6\u8fb9\u7f18\u7684\u8ddd\u79bb\u65f620\u50cf\u7d20\u3002<\/p>\n
\u4e0a\u9762\u7684\u8868\u8ff0\u53c8\u957f\u6709\u5570\u55e6\u53c8\u96be\u4ee5\u7406\u89e3\uff0c\u4f60\u53ef\u4ee5\u8fd9\u6837\u60f3\u8c61\uff1a\u9965\u997fN\u5929\u7684\u4f60\u7a81\u7136\u9762\u524d\u51fa\u73b0\u4e86\u5757\u9999\u55b7\u55b7\u7684\u5927\u5927\u7684300\u5398\u7c73*300\u5398\u7c73\u65b9\u5f62\u624b\u6293\u997c\uff0c\u4f60\u62d4\u51fa\u81ea\u5df1\u968f\u7740\u643a\u5e26\u7684\u950b\u5229\u7684\u65e5\u672c\u5200\uff0c\u5728\u8ddd\u79bb\u9876\u90e830\u5398\u7c73\u7684\u5730\u65b9\u5494\u5693\u4e00\u5200\uff0c\u7136\u540e\u5728\u8ddd\u79bb\u5de6\u8fb9200\u5398\u7c73\u7684\u5730\u65b9\u5494\u5693\u4e00\u5200\uff0c\u7136\u540e\u53c8\u4ee5\u8fc5\u96f7\u4e0d\u53ca\u63a9\u8033\u7684\u901f\u5ea6\u5728\u8ddd\u79bb\u9876\u90e8200\u5398\u7c73\u548c\u8ddd\u79bb20\u5398\u7c73\u7684\u5730\u65b9\u5494\u5693\u4e00\u5200\u3002\u556a\u556a\u56db\u5200\u7559\u4e0b\u7684\u4e2d\u95f4\u7684\u90a3\u5757\u5c31\u662f\u526a\u88c1\u7684\u5185\u5bb9\u4e86\u3002\u6240\u4ee5\uff0c\u60a8\u53ef\u4ee5\u5c06top right bottom left<\/code>\u7406\u89e3\u4e3a\u5728\u8fd9\u4e9b\u4f4d\u7f6e\u62ff\u5927\u5200\u5494\u5494\u4fee\u526a\u3002<\/p>\n
\u6216\u8005\u7406\u89e3\u4e3a\u5728photoshop\u4e2d\u4e3a\u5927\u80cc\u666f\u5efa\u56db\u4e2a\u65b9\u5411\u7684\u53c2\u8003\u7ebf\uff0c\u5982\u4e0b\u56fe\uff08300\u50cf\u7d20*300\u50cf\u7d20\uff09\u6240\u793a\uff1a<\/p>\n
\"clip:rect\u503c\u793a\u610f\u4e0ephotoshop\u53c2\u8003\u7ebf<\/p>\n
\u6240\u8c13\u201c\u4e00\u56fe\u80dc\u5343\u8a00\uff0c\u5343\u8a00\u4e0d\u654c\u4e00\u5b9e\u4f8b\u201d\u3002\u4e3a\u4e86\u66f4\u52a0\u76f4\u89c2\u7684\u7406\u89e3clip:rect<\/code>\u540e\u9762\u56db\u4e2a\u503c\u7684\u542b\u4e49\uff0c\u6211\u4e13\u95e8\u505a\u4e86\u4e2ademo\u9875\u9762\u3002\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aCSS clip:rect\u51e0\u4e2a\u503c\u542b\u4e49\u793a\u610fdemo<\/a><\/p>\n
\u5728demo\u9875\u9762\u4e2d\uff0c\u6211\u5df2\u7ecf\u5c064\u4e2a\u503c\u5206\u79bb\u51fa\u6765\u4e86\uff0c\u60a8\u4efb\u610f\u4fee\u6539\u5176\u4e2d\u7684\u4e00\u4e2a\u503c\uff0c\u9875\u9762\u4e0a\u5c31\u4f1a\u51fa\u73b0\u534a\u900f\u660e\u7684\u9ed1\u8272\u5c42\u793a\u610f\u8fd9\u90e8\u5206\u5185\u5bb9\u662f\u5c06\u4f1a\u88ab\u526a\u88c1\u6389\u7684\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u4fee\u6539\u7b2c\u4e00\u4e2a\u503c\u4e3a30\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n
\"\u4fee\u6539\u7b2c\u4e00\u4e2a\u503c\u4e3a30\u50cf\u7d20\"<\/p>\n
\u5931\u53bb\u7126\u70b9\u540e\u5c31\u4f1a\u770b\u5230\u56fe\u7247\u4e0a\u51fa\u73b0\u4e86\u6539\u503c\u5bf9\u5e94\u7684\u526a\u88c1\u4f5c\u7528\u533a\u57df\uff1a<\/p>\n
\"\u4e0a\u8fb9\u7f1830\u50cf\u7d20\u534a\u900f\u660e\"<\/p>\n
\u7c7b\u4f3c\u7684\uff0c\u6211\u4eec\u4fee\u6539\u5404\u4e2a\u6846\u6846\u7684\u503c\u4e3a30 200 200 20<\/code>\uff0c\u8fd9\u65f6\uff0c\u56fe\u7247\u4e0a\u7684\u6548\u679c\u5c31\u662f\uff1a<\/p>\n
\"\u56db\u8fb9\u5e94\u7528\u526a\u88c1\u6570\u503c\u540e\u7684\u6548\u679c\"<\/p>\n
\u5176\u4e2d\u56fe\u7247\u4e2d\u672a\u88ab\u9ed1\u8272\u534a\u900f\u660e\u5c42\u8986\u76d6\u7684\u533a\u57df\u5c31\u662f\u6700\u540e\u7684\u526a\u88c1\u533a\u57df\uff0c\u60a8\u53ef\u4ee5\u70b9\u51fb\u4e0b\u9762\u7684\u201c\u526a\u88c1\u201d\u6309\u94ae\u786e\u8ba4\u526a\u88c1\uff0c\u7ed3\u679c\u5c31\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n
\"\u6700\u540e\u7684\u4fee\u526a\u6548\u679c\u56fe\"<\/p>\n
\u60a8\u4e5f\u53ef\u4ee5\u4fee\u6539\u5176\u4ed6\u503c\u505a\u6d4b\u8bd5\u7684\u3002\u5982\u679c\u6700\u540e\u56fe\u7247\u5168\u90e8\u88ab\u534a\u900f\u660e\u5c42\u8986\u76d6\uff0c\u90a3\u4e48\u56fe\u7247\u6700\u540e\u4f1a\u88ab\u526a\u88c1\u5230\u4e00\u70b9\u4e0d\u5269\u3002<\/p>\n
\u6700\u540e\u6709\u5fc5\u8981\u8bf4\u660e\u4e0b\uff1aclip:rect\u77e9\u5f62\u526a\u88c1\u53ea\u80fd\u4f5c\u7528\u4e8eposition:absolute<\/code>\u7684\u5143\u7d20\u4e0a<\/strong>\u3002<\/p>\n
\u4e09\u3001clip:rect\u77e9\u5f62\u526a\u88c1\u7684\u4e00\u4e9b\u5e94\u7528\u4ecb\u7ecd<\/h3>\n
1. \u53ef\u7528\u6027\u9690\u85cf<\/strong>
\n\u6839\u636e\u4e0a\u9762\u5bf9top right bottom left<\/code>\u7684\u91ca\u4e49\uff0c\u5982\u679cleft >= right<\/code>\u6216\u8005bottom <= top<\/code>\uff0c\u5219\u5143\u7d20\u4f1a\u88ab\u5b8c\u5168\u88c1\u6389\u800c\u4e0d\u53ef\u89c1\uff0c\u5373\u201c\u9690\u85cf\u201d\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u9690\u85cf\u7684\u5143\u7d20\u662f\u53ef\u4ee5\u88ab\u5c4f\u5e55\u9605\u8bfb\u5668\u7b49\u8f85\u52a9\u8bbe\u5907\u8bc6\u522b\u7684\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u9875\u9762\u7684\u53ef\u7528\u6027\u3002<\/p>\n
\u4f8b\u5982\uff1a<\/p>\n
\n
clip: rect(1px 1px 1px 1px); \/*left = right, bottom = top*\/<\/span><\/pre>\n<\/div>\n
\u6216<\/p>\n
\n
clip: rect(10px 10px 10px 100px); \/*left > right*\/<\/span><\/pre>\n<\/div>\n
\u6216<\/p>\n
\n
clip: rect(100px 10px 10px 10px); \/*bottom < top*\/<\/span><\/pre>\n<\/div>\n
\u7b49\uff0c\u6b63\u6240\u8c13\u5c0f\u624b\u6296\u4e00\u6296\uff0c\u526a\u88c1\u6709\u6728\u6709\u3002\/\/zxx:\u4e0a\u9762\u51e0\u4e2a\u503c\u7684\u6548\u679c\u60a8\u53ef\u4ee5\u53bbpart2\u90e8\u5206\u6240\u63d0\u4f9b\u7684demo\u9875\u9762<\/a>\u505a\u6d4b\u8bd5\u6ef4\u3002<\/span><\/p>\n
2. img\u6807\u7b7e\u4e0b\u7684CSS Sprite\u5b9a\u4f4d<\/strong>
\n\u4e3a\u4e86\u8282\u7ea6\u56fe\u7247\u8d44\u6e90\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u628a\u5c0f\u56fe\u7247\u6574\u5408\u5230\u4e00\u5f20\u56fe\u7247\u4e0a\uff0c\u79f0\u4e3a\u56fe\u7247\u5408\u5e76\u6280\u672f\uff0c\u56fd\u5916\u79f0\u4e3aCSS Sprite\uff0c\u542b\u201c\u7cbe\u7075\u201d\u4e4b\u610f\u3002\u7136\u540e\u5229\u7528\u5143\u7d20\u533a\u57df\u5916background<\/code>\u5185\u5bb9\u4e0d\u53ef\u89c1\u7684\u7279\u6027\u914d\u5408background-position<\/code>\u5b9a\u4f4d\u5b9e\u73b0\u56fe\u7247\u7684\u7cbe\u786e\u663e\u793a\u3002<\/p>\n
\u5c31\u8fde\u4e07\u4e07\u4e0d\u80fd\u6ca1\u6709\u7684\u94b1\u90fd\u4e0d\u662f\u4e07\u80fd\u7684\uff0c\u663e\u7136\uff0cbackground-position<\/code>\u4e0b\u7684CSS Sprite\u5b9a\u4f4d\u4e5f\u4e0d\u53ef\u80fd\u9002\u7528\u4e8e\u5404\u79cd\u60c5\u51b5\u3002\u4f8b\u5982\uff0c\u6709\u65f6\u6211\u4eec\u5e0c\u671bSprite\u56fe\u7247\u53ef\u4ee5\u5ef6\u8fdf\u6eda\u52a8\u52a0\u8f7d\uff0c\u6216\u8005\u662f\u53ef\u4ee5\u5f88\u8f7b\u677e\u7684\u53f3\u952e\u56fe\u7247\u53e6\u5b58\u4e3a...\u6216\u8005\u662f\u67d0\u4e9b\u7279\u6b8a\u7684background-position<\/code>\u5c5e\u6027\u4e0d\u8d77\u4f5c\u7528\u7684\u60c5\u51b5\u3002<\/p>\n
\u4f8b\u5982\uff0c\u4f17\u6240\u5468\u77e5\u7684\uff0cIE6\u6d4f\u89c8\u5668\u4e0d\u652f\u6301Alpha\u900f\u660e\u901a\u9053\u7684png\u56fe\u7247\uff08\u4f1a\u6709\u84dd\u84dd\u7684\u80cc\u666f\uff09\uff0c\u4f8b\u5982\u4e0b\u56fe\u6240\u793a\uff1a
\n\"IE6\u4e0d\u652f\u630132\u4f4dpng\u56fe\u7247\u793a\u610f<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528filter\u6ee4\u955c\u4fee\u590d\u8fd9\u4e00\u95ee\u9898\u3002\u7136\u800c\uff0c\u5982\u679c\u8be5png\u56fe\u7247\u4ee5background-image\u7684\u5f62\u5f0f\u6ee4\u955c\u900f\u660e\u5316\u7684\u8bdd\u662f\u4e0d\u652f\u6301background-position<\/code>\u5b9a\u4f4d\u7684\uff0c\u4e5f\u5c31\u662f\uff0c\u6211\u4eec\u4e0d\u53ef\u80fd\u5728IE6\u4e0b\u4f7f\u7528background\u5c5e\u6027\u5b9e\u73b0png\u56fe\u7247\u7684Sprite\u5b9a\u4f4d\u3002\u6b64\u65f6\uff0c\u8981\u60f3\u5b9e\u73b0IE6\u4e0bpng\u56fe\u7247\u7684Sprite\u5b9a\u4f4d\u53ea\u80fd\u5728\u9875\u9762\u4e0a\u5b8c\u6210\uff0c\u4f7f\u7528img\u6807\u7b7e\uff0c\u800c\u975ebackground-image<\/code>\u5c5e\u6027\u3002<\/p>\n
\u7136\u540e\uff0cimg\u6807\u7b7e\u4e0b\u7684\u56fe\u7247\u662f\u4e0d\u4f1a\u50cfbackground-image<\/code>\u4e00\u6837\u5143\u7d20\u533a\u57df\u5916\u90e8\u5206\u81ea\u52a8\u9690\u85cf\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u9700\u8981\u501f\u52a9\u67d0\u4e9b\u624b\u6bb5\u5bf9\u9f50\u8fdb\u884c\u88c1\u526a\uff0c\u6b64\u65f6clip:rect<\/code>\u5c31\u6d3e\u4e0a\u7528\u573a\u4e86\u3002<\/p>\n
\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aclip:rect\u4e0bpng\u56fe\u7247Sprite\u5b9a\u4f4ddemo<\/a><\/p>\n
demo\u9875\u9762\u4e2d\u7684\u6c99\u53d1png\u56fe\u7247\u5b8c\u6574\u663e\u793a\u5982\u4e0b\uff1a
\n\"png<\/p>\n
\u5982\u679c\u60a8\u624b\u5934\u4e0a\u7684\u6d4f\u89c8\u5668\u4e3aIE6\u6d4f\u89c8\u5668\uff0c\u5219\u6253\u5f00demo\u9875\u9762\u4f1a\u770b\u5230\u5982\u4e0b\u6548\u679c\uff1a
\n\"IE6\u4e0bdemo\u622a\u56fe<\/p>\n
\u53ef\u4ee5\u770b\u5230\u9f20\u6807\u79fb\u4e0a\u53bb\u540e\u662f\u6709Sprite\u5b9a\u4f4d\u5207\u6362\u5b9e\u73b0\u7684hover\u6548\u679c\uff1a
\n\"IE6\u4e0bpng\u56fe\u7247hover<\/p>\n
\u53ef\u4ee5\u770b\u5230\u4e3a\u5e94\u7528\u900f\u660e\u6ee4\u955c\u7684\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528img<\/code>\u6807\u7b7e\u914d\u5408clip:rect<\/code>\u8f7b\u677e\u5b9e\u73b0\u4e86Sprite\u56fe\u7247\u7684hover\u5207\u6362\u6548\u679c\u3002\u8fd9\u5728background\u5c5e\u6027\u4e2d\u4e5f\u80fd\u5b9e\u73b0\uff0cOK\uff0c\u73b0\u5728\u70b9\u51fb\u4e0b\u9762\u7684\u201cIE6 png\u900f\u660e\u6309\u94ae\u201d\uff0c\u5e94\u7528AlphaImageLoader<\/code>\u900f\u660e\u6ee4\u955c\uff0c\u7136\u540e\u518d\u9f20\u6807\u7ecf\u8fc7\uff0c\u7ed3\u679c\u4e5f\u662f\u53ef\u4ee5\u5b9e\u73b0hover\u6548\u679c\u7684\uff0c\u89c1\u4e0b\u56fe\uff1a
\n\"\u5e94\u7528filter\u6ee4\u955c\u540e\u7684IE6\u4e0bhover\u6548\u679c<\/p>\n
CSS\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\n
.clip_a{display:block; width:128px; height:128px;}\n.clip_a img{border:0; position:absolute; clip:rect(0 128px 128px 0);}\n.clip_a:hover{border:0;}\n.clip_a:hover img{margin-top:-128px; clip:rect(128px 128px 256px 0);}<\/pre>\n<\/div>\n
\u7531\u6b64\u53ef\u89c1\uff0cCSS Sprite\u7684\u5b9a\u4f4d\u4e0d\u4ec5\u4ec5\u53ef\u4ee5\u4f7f\u7528background<\/code>\u5c5e\u6027\uff0c\u5728\u9875\u9762\u4e0a\u4f7f\u7528img<\/code>\u6807\u7b7e\uff0c\u914d\u5408clip:rect<\/code>\u526a\u88c1\u4e5f\u662f\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u5b9a\u4f4d\u6548\u679c\u7684\u3002<\/p>\n
3. \u56fe\u7247\u526a\u88c1\u7684\u9884\u89c8\u6548\u679c<\/strong>
\n\u5173\u4e8e\u56fe\u50cf\u526a\u88c1\uff0c\u5f88\u65e9\u524d\u6211\u66fe\u7ffb\u8bd1\u8fc7\u4e00\u4e2a\u540d\u4e3aJcrop\u7684jQuery\u63d2\u4ef6\uff0c\u6587\u7ae0\u540d\u4e3a\u201cjQuery\u7167\u7247\u56fe\u50cf\u526a\u88c1\u63d2\u4ef6Jcrop\u4e2d\u6587\u7ffb\u8bd1\u8be6\u89e3<\/a>\u201d\uff0c\u5176\u4e2d\u6709\u4e2ademo\u662f\u542b\u6709\u526a\u88c1\u9884\u89c8\u6548\u679c\u7684\uff0c\u60a8\u53ef\u4ee5\u8f7b\u8f7b\u5730\u70b9\u51fb\u8fd9\u91cc<\/a>\u8bbf\u95ee\u3002<\/p>\n
\u91cc\u9762\u7684\u526a\u88c1\u9884\u89c8\u91c7\u7528margin\u5b9a\u4f4d\uff0c\u6709\u7740\u8f83\u4e3a\u590d\u6742\u7684\u8ba1\u7b97\u3002
\n\"\u56fe\u7247\u9884\u89c8\u4e4bmargin\u5b9a\u4f4d<\/p>\n
\u5b9e\u9645\u4e0a\uff0c\u50cf\u526a\u88c1\u9884\u89c8\u6548\u679c\u663e\u793a\u7528\u526a\u88c1\u5c5e\u6027\u6765\u5b9e\u73b0\u662f\u6700\u5408\u9002\u7684\u4e86\u3002\u4e8e\u662f\uff0c\u81ea\u5df1\u5229\u7528\u81ea\u5df1\u5148\u524d\u5199\u7684\u539f\u751f\u6001\u7684\u201c\u56fe\u7247\u65cb\u8f6c+\u526a\u88c1js\u63d2\u4ef6<\/a>\u201d\u4e2d\u7684zxx.crop_rotation.js<\/a>\u5199\u4e86\u4e2a\u56fe\u7247\u526a\u88c1\u9884\u89c8\u6548\u679cdemo\u3002<\/p>\n
\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aclip:rect\u56fe\u7247\u526a\u88c1\u6548\u679cdemo<\/a><\/p>\n
demo\u9875\u9762\u4e2d\u7684\u65cb\u8f6c\u53ef\u4ee5\u76f4\u63a5\u5f53\u7a7a\u6c14\uff0c\u79fb\u52a8\uff0c\u62d6\u52a8\u793a\u610f\u533a\u57df\uff0c\u5c31\u4f1a\u5728\u53f3\u4fa7\u770b\u5230\u5bf9\u5e94\u7684\u526a\u88c1\u9884\u89c8\u6548\u679c\uff1a<\/p>\n
\"\u526a\u88c1demo\u6548\u679c\u9884\u89c8\u56fe\"<\/p>\n
\u6b64\u4f8b\u65e8\u5728\u5c55\u793aclip:rect<\/code>\u7684\u6f5c\u529b\uff0c\u6545\u539f\u7406\u4e0e\u4f7f\u7528\u7565\uff0c\u60a8\u6709\u5174\u8da3\u53ef\u53c2\u8003\u4e0a\u9762\u63d0\u5230\u7684\u6587\u7ae0<\/a>\uff0c\u4ee5\u53cademo\u9875\u9762\u76f8\u5173\u6e90\u4ee3\u7801\u3002<\/p>\n
\u56db\u3001\u6e05\u660e\u8282\u524d\u7684\u5520\u53e8<\/h3>\n
\u6e05\u660e\u65f6\u8282\u96e8\u7eb7\u7eb7\uff0c\u8def\u4e0a\u884c\u4eba\u6b32\u65ad\u9b42\uff0c\u770b\u7740\u5929\u6c14\u50cf\u662f\u8981\u4e0b\u96e8\u7684\u6837\u5b50\u3002\u4eca\u665a\u56de\u4e61\uff0c\u796d\u62dc\u5148\u7956\u3002\u56e0\u4e3a\u4e61\u4e0b\u6ca1\u6709\u5b89\u88c5\u5bbd\u5e26\uff0c\u6240\u4ee5\u4eca\u5929\u76f4\u63a5\u5c31\u5728\u4e0a\u73ed\u65f6\u95f4\u6298\u817e\u8fd9\u7bc7\u6587\u7ae0\u4e86\uff0c\u6545\u7ed3\u5c3e\u5904\u53ef\u80fd\u7565\u663e\u4ed3\u4fc3\u3002\u53e6\u5916\uff0c\u8d44\u8d28\u6709\u9650\uff0cclip:rect<\/code>\u7684\u7814\u7a76\u4e5f\u4e0d\u6df1\uff0c\u6240\u4ee5\u6587\u4e2d\u4e5f\u96be\u514d\u6709\u8868\u8ff0\u4e0d\u51c6\u786e\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u6307\u6b63\uff0c\u4e0d\u751a\u611f\u8c22\u3002<\/p>\n
\u672c\u6587\u7684\u51e0\u4e2aclip:rect<\/code>\u7684\u5e94\u7528\u5b9e\u4f8b\u7eaf\u5c5e\u629b\u7816\u5f15\u7389\uff0c\u7531\u4e8e\u5176\u672c\u8eab\u529f\u80fd\u7684\u7279\u6b8a\u6027\uff0cclip<\/code>\u5c5e\u6027\u4e00\u5b9a\u8fd8\u6709\u5176\u4ed6\u66f4\u52a0\u7cbe\u5999\u7684\u5e94\u7528\uff0c\u8fd9\u5c31\u8981\u770b\u4f60\u7684\u667a\u6167\u4e86\u3002<\/p>\n
\u5f97\uff0c\u5c31\u8fd9\u4e9b\u3002\u795d\u201c\u7c73\u5a1c\u6851\u201d\u8282\u65e5\u4e00\u5207\u987a\u5229\u3002<\/p>\n
\u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u6765\u81ea\u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b<\/a>[http:\/\/www.zhangxinxu.com<\/a>]
\n\u672c\u6587\u5730\u5740\uff1ahttp:\/\/www.zhangxinxu.com\/wordpress\/?p=1565<\/a><\/p>\n
\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
<\/a>
\nCSS\u4e2d\u6709\u4e00\u4e2a\u5c5e\u6027\u53eb\u505aclip\uff0c\u4e3a\u4fee\u526a\uff0c\u526a\u88c1\u4e4b\u610f\u3002\u914d\u5408\u5176\u5c5e\u6027\u5173\u952e\u5b57rect\u53ef\u4ee5\u5b9e\u73b0\u5143\u7d20\u7684\u77e9\u5f62\u88c1\u526a\u6548\u679c\u3002\u6b64\u5c5e\u6027\u5b89\u5b89\u7a33\u7a33\u5730\u5b58\u5728\u4e8eCSS2.1\u4e2d\uff0c\u4e14\u4f7f\u7528\u4e0a\u57fa\u672c\u4e0a\u6ca1\u6709\u7c7b\u4f3c\u4e8emax-height\/display:table-cell\u7b49\u6d4f\u89c8\u5668\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002\u4f46\u662f\uff0c\u8c8c\u4f3c\u5927\u5bb6\u5f88\u5c11\u4f7f\u7528\u6b64\u5c5e\u6027\u3002\u5b9e\u9645\u4e0aclip\u662f\u5b9e\u5728\u5728\u7684\u53ef\u4ee5\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u5927\u653e\u5149\u5f69\u7684\u4e1c\u4e1c\u3002<\/p>\n
\u672c\u6587\u4e00\u5982\u65e2\u5f80\uff0c\u63d0\u4f9b\u5fc5\u8981\u7684demo\u9875\u9762\u4ee5\u53ca\u6e90\u4ee3\u7801\u5c55\u793a\uff0c\u63d0\u4f9b\u5c5e\u6027\u7684\u4e00\u4e9b\u5177\u6709\u4ee3\u8868\u6027\u7684\u5b9e\u4f8b\u3002\u603b\u4e4b\uff0c\u5e0c\u671b\u672c\u6587\u7684\u5185\u5bb9\u80fd\u591f\u5bf9\u60a8\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\u3002<\/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":[583,359,1271,8,170,584,357,226,472,206],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/1565"}],"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=1565"}],"version-history":[{"count":0,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/1565\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=1565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=1565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=1565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}