{"id":1494,"date":"2011-03-07T19:10:13","date_gmt":"2011-03-07T11:10:13","guid":{"rendered":"http:\/\/www.zhangxinxu.com\/wordpress\/?p=1494"},"modified":"2018-01-01T22:19:13","modified_gmt":"2018-01-01T14:19:13","slug":"css-css3-unit-units","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2011\/03\/css-css3-unit-units\/","title":{"rendered":"CSS\/CSS3\u957f\u5ea6\u3001\u65f6\u95f4\u3001\u9891\u7387\u3001\u89d2\u5ea6\u5355\u4f4d\u5927\u5168"},"content":{"rendered":"

by zhangxinxu<\/a> from http:\/\/www.zhangxinxu.com<\/a>
\n\u672c\u6587\u5730\u5740\uff1ahttp:\/\/www.zhangxinxu.com\/wordpress\/?p=1494<\/a><\/p>\n

\u4e00\u3001\u4e00\u7b14\u5e26\u8fc7\u7684\u524d\u8a00<\/h3>\n

CSS\u4e2d\u51e1\u662f\u7275\u626f\u5230\u6570\u503c\u7684\u57fa\u672c\u4e0a\u90fd\u4e0e\u5355\u4f4d\u76f8\u5173\u8054\uff0c\u4f8b\u5982\uff1a<\/p>\n

\n
.test{width:180px;}<\/pre>\n<\/div>\n
\u5e73\u65f6\u6211\u4eec\u518d\u5236\u4f5c\u9875\u9762\u7684\u65f6\u5019\u7528\u5230\u7684\u5355\u4f4d\u4e5f\u5c31\u90a3\u4e48\u51e0\u4e2a\uff0c\u800c\u5b9e\u9645\u4e0aCSS\u4e2d\u7684\u53ef\u7528\u5355\u4f4d\u7684\u6570\u91cf\u591a\u5f97\u60ca\u4eba\uff0c\u5c24\u5176CSS3\u7684\u51fa\u73b0\u66f4\u58ee\u5927\u4e86CSS\u5355\u4f4d\u5bb6\u65cf\u3002\u800c\u672c\u6587\u5c31\u662f\u7b80\u5355\u5c55\u793a\u4e0b\u8fd9\u4e9b\u503c\u8fd9\u4e9b\u5355\u4f4d\u3002<\/p>\n
\u4e8c\u3001CSS\u957f\u5ea6\u503c<\/h3>\n
\u5e9f\u8bdd\u5c31\u4e0d\u8bf4\u4e86\uff0c\u76f4\u63a5\u53c2\u89c1\u4e0b\u8868\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5355\u4f4d<\/th>\n\u542b\u4e49<\/th>\n<\/tr>\n
em<\/td>\n\u76f8\u5bf9\u4e8e\u7236\u5143\u7d20\u7684\u5b57\u4f53\u5927\u5c0f<\/td>\n<\/tr>\n
ex<\/td>\n\u76f8\u5bf9\u4e8e\u5c0f\u5199\u5b57\u6bcd"x"\u7684\u9ad8\u5ea6<\/td>\n<\/tr>\n
gd<\/td>\n\u4e00\u822c\u7528\u5728\u4e1c\u4e9a\u5b57\u4f53\u6392\u7248\u4e0a\uff0c\u8fd9\u4e2a\u4e0e\u82f1\u6587\u5e76\u65e0\u5173\u7cfb<\/td>\n<\/tr>\n
rem<\/td>\n\u76f8\u5bf9\u4e8e\u6839\u5143\u7d20\u5b57\u4f53\u5927\u5c0f<\/td>\n<\/tr>\n
vw<\/td>\n\u76f8\u5bf9\u4e8e\u89c6\u7a97\u7684\u5bbd\u5ea6\uff1a\u89c6\u7a97\u5bbd\u5ea6\u662f100vw<\/td>\n<\/tr>\n
vh<\/td>\n\u76f8\u5bf9\u4e8e\u89c6\u7a97\u7684\u9ad8\u5ea6\uff1a\u89c6\u7a97\u9ad8\u5ea6\u662f100vh<\/td>\n<\/tr>\n
vm<\/td>\n\u76f8\u5bf9\u4e8e\u89c6\u7a97\u7684\u5bbd\u5ea6\u6216\u9ad8\u5ea6\uff0c\u53d6\u51b3\u4e8e\u54ea\u4e2a\u66f4\u5c0f<\/td>\n<\/tr>\n
ch<\/td>\n\u76f8\u5bf9\u4e8e0\u5c3a\u5bf8<\/td>\n<\/tr>\n
px<\/td>\n\u76f8\u5bf9\u4e8e\u5c4f\u5e55\u5206\u8fa8\u7387\u800c\u4e0d\u662f\u89c6\u7a97\u5927\u5c0f\uff1a\u901a\u5e38\u4e3a1\u4e2a\u70b9\u62161\/72\u82f1\u5bf8<\/td>\n<\/tr>\n
in<\/td>\ninch, \u8868\u82f1\u5bf8<\/td>\n<\/tr>\n
cm<\/td>\ncentimeter, \u8868\u5398\u7c73<\/td>\n<\/tr>\n
mm<\/td>\nmillimeter, \u8868\u6beb\u7c73<\/td>\n<\/tr>\n
pt<\/td>\n1\/72\u82f1\u5bf8<\/td>\n<\/tr>\n
pc<\/td>\n12\u70b9\u6d3b\u5b57\uff0c\u62161\/12\u70b9<\/td>\n<\/tr>\n
%<\/td>\n\u76f8\u5bf9\u4e8e\u7236\u5143\u7d20\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\u662f\u901a\u8fc7\u5c5e\u6027\u5b9a\u4e49\u81ea\u8eab\u6216\u5176\u4ed6\u5143\u7d20<\/td>\n<\/tr>\n<\/table>\n
\u4e3a\u4e86\u4f53\u9a8c\u4e0a\u9762\u7684\u5404\u4e2a\u5355\u4f4d\u7684\u8868\u793a\u4e0e\u6548\u679c\uff0c\u6211\u4e13\u95e8\u505a\u4e86\u4e2a\u6d4b\u8bd5\u7528\u7684demo\u9875\u9762\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aCSS\u957f\u5ea6\u503c\u4f53\u9a8cdemo<\/a><\/p>\n
\"CSS\u957f\u5ea6\u503c\u4f53\u9a8cdemo\u622a\u56fe<\/p>\n
\u9ed8\u8ba4\u6d4b\u8bd5\u5143\u7d20\u7684\u5bbd\u5ea6\u4e3a480\u50cf\u7d20\uff0c\u6539\u53d8demo\u9875\u9762\u4e2d\u5355\u884c\u6587\u672c\u6846\u7684\u503c\u6216\u662f\u9009\u62e9\u4e0d\u540c\u7684\u4e0b\u62c9\u9009\u9879\uff0c\u5c31\u53ef\u4ee5\u4f53\u9a8c\u4e0a\u8868\u4e2d\u5404\u4e2a\u957f\u5ea6\u503c\u7684\u6548\u679c\u4e86\u3002\u4f8b\u5982\uff0c\u6587\u672c\u6846\u503c\u6539\u6210100\uff0c\u4e0b\u62c9\u9009\u62e9mm<\/code>\u4f5c\u4e3a\u5355\u4f4d\uff0c\u7ed3\u679c\u6548\u679c\u5982\u4e0b\u56fe\uff1a
\n\"\u4fee\u6539\u6570\u503c\u548c\u5355\u4f4d\u540e\u7684\u6548\u679c\u622a\u56fe<\/p>\n
\u6839\u636e\u6211\u7684\u6d4b\u8bd5\uff0c\u8c8c\u4f3cvh, vw\u8fd9\u51e0\u4e2a\u5355\u4f4d\u662f\u6ca1\u6709\u4ec0\u4e48\u6548\u679c\u7684\u3002IE\u6d4f\u89c8\u5668\u4e0b\uff0c\u4e0d\u652f\u6301\u7684\u5355\u4f4d\u8981\u6bd4\u73b0\u4ee3\u6d4f\u89c8\u5668\u591a\u51e0\u4e2a\uff0c\u4f46\u662f\uff0c\u7edd\u5927\u90e8\u5206\u90fd\u662f\u652f\u6301\u7684\u3002<\/p>\n
\u5982\u679c\u60a8\u770b\u5230\u4e0b\u9762\u7684\u6587\u5b57\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u5728\u5176\u4ed6\u7f51\u7ad9\u6216\u662fRSS\u4e2d\u9605\u8bfb\u672c\u6587\uff0c\u672c\u6587\u539f\u5730\u5740\uff1ahttp:\/\/www.zhangxinxu.com\/wordpress\/?p=1494<\/a>\uff0c\u672c\u6587\u4f5c\u8005\uff1a\u5f20\u946b\u65ed<\/a>\uff0c\u6765\u81ea\u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b\uff0c\u8bbf\u95ee\u539f\u51fa\u5904\u66f4\u591a\u4f18\u79c0\u6280\u672f\u6587\u7ae0\u3002<\/em><\/div>\n
\u4e09\u3001\u65f6\u95f4\u3001\u9891\u7387\u3001\u89d2\u5ea6<\/h3>\n
\u5e9f\u8bdd\u518d\u6b21\u4e0d\u591a\u8bf4\u4e86\uff0c\u53c2\u89c1\u4e0b\u8868\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u5355\u4f4d<\/th>\n\u542b\u4e49<\/th>\n<\/tr>\n
deg<\/td>\ndegrees, \u89d2\u5ea6<\/td>\n<\/tr>\n
grad<\/td>\ngrads, \u767e\u5206\u5ea6<\/td>\n<\/tr>\n
rad<\/td>\nradians, \u5f27\u5ea6<\/td>\n<\/tr>\n
turn<\/td>\nturns, \u5708\u6570<\/td>\n<\/tr>\n
ms<\/td>\nmilliseconds, \u6beb\u79d2\u6570<\/td>\n<\/tr>\n
s<\/td>\nseconds, \u79d2\u6570<\/td>\n<\/tr>\n
Hz<\/td>\nHertz, \u8d6b\u5179<\/td>\n<\/tr>\n
kHz<\/td>\nkilohertz, \u5343\u8d6b<\/td>\n<\/tr>\n<\/table>\n
\u4e0a\u9762\u5f88\u591a\u7684\u5355\u4f4d\u662f\u4f34\u968f\u7740CSS3\u7684\u8bde\u751f\u800c\u8bde\u751f\u7684\u3002<\/p>\n
\u65cb\u8f6c\u6548\u679c\u7275\u626f\u5230\u89d2\u5ea6\uff0c\u52a8\u753b\u6548\u679c\u7275\u626f\u5230\u65f6\u95f4\uff0c\u58f0\u97f3\u7275\u626f\u5230\u9891\u7387\u3002\u9009\u51e0\u4e2a\u4ee3\u8868\u6027\u7684\u4e3e\u4f8b\u5427\uff1a<\/p>\n
\u89d2\u5ea6(Degrees)<\/strong>
\n\u89d2\u5ea6\u8303\u56f4\u4ece0~360\u5ea6(deg)\uff0c\u5f53\u7136\uff0c\u4e5f\u53ef\u4ee5\u662f\u8d1f\u6570\uff0c\u5982\u679c\u662f\u8d1f\u6570\u5219\u9006\u65f6\u9488\u3002\u5982\u4e0b\u7684CSS\u4ee3\u7801\uff1a<\/p>\n
\n
.image_test_1, .image_test_5 {\n    -moz-transform: rotate(-5deg);\n    -webkit-transform: rotate(-5deg);\n    -o-transform: rotate(-5deg);\n    transform: rotate(-5deg);\n}\n.image_test_2, .image_test_4 {\n    -moz-transform: rotate(5deg);\n    -webkit-transform: rotate(5deg);\n    -o-transform: rotate(5deg);\n    transform: rotate(5deg);\n}<\/pre>\n<\/div>\n
\u7ed3\u679c\u5982\u4e0b\u7f29\u7565\u56fe\uff1a
\n\"\u89d2\u5ea6\u5355\u4f4d\u4f7f\u7528demo\u622a\u56fe<\/p>\n
\u5982\u679c\u60a8\u5f53\u524d\u4f7f\u7528\u7684\u662f\u6bd4\u8f83\u9760\u8c31\u7684\u6d4f\u89c8\u5668\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a\u89d2\u5ea6\u5355\u4f4d(degree)\u4f7f\u7528demo<\/a><\/p>\n
\u767e\u5206\u5ea6(Grads)<\/strong>
\n\u4e00\u4e2a\u5206\u5ea6\uff0c\u6216\u8005\u8bf4\u662f\u767e\u5206\u5ea6\u76f8\u5bf9\u4e8e1\/400\u4e2a\u6574\u5706\uff0c\u8ddf\u89d2\u5ea6\u5355\u4f4d\u4e00\u6837\uff0c\u652f\u6301\u8d1f\u503c\uff0c\u8d1f\u503c\u8868\u793a\u9006\u65f6\u9488\u65b9\u5411\u3002100gads<\/code>\u76f8\u5f53\u4e8e90deg<\/code>\u3002<\/p>\n
\u5f27\u5ea6(Rads)<\/strong>
\n\u8fd9\u4e2a\u5355\u4f4d\u8ba9\u6211\u7acb\u9a6c\u60f3\u5230\u4e86\u521d\u4e2d\u6570\u5b66\uff0c\u90a3\u4e9b\u7ea0\u7ed3\u4e8e\u6298\u817e\u7684\u65e5\u5b50\u3002\u8a00\u5f52\u6b63\u4f20\uff0c1\u5f27\u5ea6\u7b49\u4e8e180\/\u03c0\u5ea6\uff0c\u6216\u8005\u5927\u81f4\u7b49\u4e8e57.3\u5ea6\u30021.570796326794897rad<\/code>\u76f8\u5f53\u4e8e100gads<\/code>\u6216\u662f90deg<\/code>\uff0c\uff08\u4e0b\u56fe\u53d6\u81eastandardista<\/a>\uff09\u3002<\/p>\n
\"\u5f27\u5ea6\uff0c\u5206\u5ea6\u4e0e\u89d2\u5ea6\u5173\u7cfb\u56fe<\/p>\n
\u5708\u6570(Turns)<\/strong>
\n\u8fd9\u4e2a\u5f88\u597d\u7406\u89e3\u4e86\uff0c1\u5708360\u5ea6\uff0c\u5e73\u65f6\u4f53\u64cd\u6216\u8df3\u6c34\u4e2d\u51fa\u73b0\u7684\u201c\u540e\u7a7a\u7ffb720\u5ea6\u201d\uff0c\u4e5f\u5c31\u662f\u540e\u7a7a\u7ffb\u4e24\u5708\u7684\u610f\u601d\u5566\u3002\u4e8e\u662f\u6709\u7b49\u5f0f1turn = 360deg<\/code>, 2turn = 720deg<\/code>, …<\/p>\n
\u65f6\u95f4(Times)<\/strong>
\n\u8fd9\u4e2a\u5355\u4f4d\u4e5f\u5e94\u8be5\u5f88\u719f\u6089\uff0c\u521d\u4e2d\u7269\u7406\u5f88\u65e9\u5c31\u63a5\u89e6\u7684\u5355\u4f4d\u4e86\u3002\u79d2\u561b\u5c31\u662fs<\/code>\uff0c\u6beb\u79d2\u561b\u5c31\u662fms<\/code>\uff0c1s = 1000ms<\/code>\uff0c\u6b64\u5355\u4f4d\u4e00\u822c\u7528\u5728CSS3\u52a8\u753b\u4e2d\uff0c\u4f8b\u5982transition\u6216\u662fanimate\u4e2d\uff0c\u60a8\u53ef\u4ee5\u53c2\u89c1\u6211\u4e4b\u524d\u7684\u201cCSS3 Transitions, Transforms\u548cAnimation\u4f7f\u7528\u7b80\u4ecb\u4e0e\u5e94\u7528\u5c55\u793a<\/a>\u201d\u4e00\u6587\uff0c\u91cc\u9762\u6709\u6b64\u5355\u4f4d\u4f7f\u7528\u7684\u5b9e\u4f8b\u3002<\/p>\n
\u5982\u679c\u60a8\u76ee\u524d\u4f7f\u7528\u7684\u662fOpera\/Chrome\/Safar\u8fd9\u6d4f\u89c8\u5668\u4e4b\u4e00\uff0c\u60a8\u53ef\u4ee5\u8f7b\u8f7b\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a\u4e0d\u540c\u7f13\u52a8\u7c7b\u6548\u679cdemo<\/a>\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f53\u9a8c\u65f6\u95f4\u5355\u4f4d\u7684\u4f5c\u7528\u3002<\/p>\n
\u9891\u7387(Frequencies)<\/strong>
\n\u9891\u7387\u503c\u4f7f\u7528\u5728\u542c\uff08\u6216\u8bf4\uff09\u7ea7\u8054\u6837\u5f0f\u8868\u4e2d\uff0c\u6709\u4e24\u4e2a\u5355\u4f4d\u503c\uff0c\u53ca\u8d6b\u5179\u548c\u5343\u8d6b\uff0c\u6709\u70b9\u6beb\u79d2\u548c\u79d2\u7684\u611f\u89c9\u3002\u9891\u7387\u53ef\u4ee5\u88ab\u7528\u6765\u6539\u53d8\u4e00\u4e2a\u8bed\u97f3\u9605\u8bfb\u6587\u672c\u7684\u97f3\u8c03\u3002\u4f4e\u9891\u7387\u662f\u4f4e\u97f3\uff0c\u9ad8\u9891\u7387\uff0c\u9ad8\u97f3\u3002\u4f8b\u5982\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n
\n
p.low { pitch: 105Hz; }\nq.squeal {pitch: 135Hz;}<\/pre>\n<\/div>\n
\u56db\u3001\u7ed3\u8bed<\/h3>\n
\u672c\u6587\u4e3b\u8981\u7b80\u5355\u4ecb\u7ecd\u4e0bCSS\u4e2d\u5404\u5f0f\u5404\u6837\u7684\u5355\u4f4d\u503c\uff0c\u65e8\u5728\u62d3\u5c55\u773c\u754c\uff0c\u6240\u4ee5\u5185\u5bb9\u90fd\u662f\u5f88\u6d45\u663e\u7684\u3002\u5355\u4f4d\u8fd9\u4e1c\u897f\u8981\u662f\u6df1\u5165\u53bb\u5206\u6790\u6d0b\u6d0b\u6d12\u6d12\u4e00\u4e2a\u7cfb\u5217\u4e5f\u96be\u8bf4\u6e05\u7684\u3002\u8bf7\u539f\u8c05\u6211\u5982\u6b64\u7c97\u7cd9\u7684\u7ed3\u8bed\uff0c\u5c31\u8fd9\u4e9b\u5427\u3002\u54e6\uff0c\u5bf9\u4e86\uff0c\u636e\u8bf4\u4eca\u5929\u662f\u5973\u751f\u8282\uff0c\u90a3\u795d\u5e7f\u5927\u5973\u751f\u4eec\u8282\u65e5\u5feb\u4e50\u7684\u8bf4\u3002<\/p>\n
\u53c2\u8003\u6587\u7ae0\uff1aCSS Value Lengths, Times, Frequencies and Angles<\/a><\/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=1494<\/a><\/p>\n
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