CSS初始化代码

CSS初始化是指重设浏览器的样式。不同的浏览器默认的样式可能不尽相同，所以开发时的第一件事可能就是如何把它们统一。如果没对CSS初始化往往会出现 浏览器之间的页面差异。每次新开发网站或新网页时候通过初始化CSS样式的属性，为我们将用到的CSS或html标签更加方便准确，使得我们开发网页内容 时更加方便简洁，同时减少CSS代码量，节约网页下载时间。

最耗资源的，最简单的

* { padding: 0; margin: 0; border: 0; } 

选择性初始化举例（综合）

body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,legend,buttonform,fieldset,input,textarea,p,blockquote,th,td {   　　padding: 0;   　　margin: 0;   }/* 酌情修改 */body {    background:#fff;color:#333;font-size:12px; margin-top:5px;font-family:"SimSun","宋体","Arial Narrow";}/* 短引用的内容可取值：''或"" */q:before,q:after {content:”;}  /* 缩写，图片等无边框 */fieldset,img,abbr,acronym {border: 0 none;}abbr,acronym {font-variant: normal;}legend {color:#000;}/* 清除特殊标记的字体和字号 */address,caption,cite,code,dfn,em,strong,th,var {   　　font-weight: normal;   　　font-style: normal;   }/* 上下标 */sup {vertical-align: text-top;}sub {vertical-align: text-bottom;}/* 设置表格的边框被合并为一个单一的边框, 指定分隔边框模型中单元格边界之间的距离为0*/table {   　　border-collapse: collapse;   　　border-spacing: 0;   }   /* 表格标题及内容居左显示 */caption,th {text-align: left;}input,img,select {vertical-align:middle;}/* 清除列表样式 */ol,ul {list-style: none;}  /* 输入控件字体 */input,button,textarea,select,optgroup,option {    font-family:inherit;    font-size:inherit;    font-style:inherit;    font-weight:inherit;}/* 标题元素样式清除 */ h1,h2,h3,h4,h5,h6 {   　　font-weight: normal;   　　font-size: 100%;   }   /* 链接样式，颜色可酌情修改 */del,ins,a {text-decoration:none;}a:link {color:#009;}a:visited {color:#800080;}a:hover,a:active,a:focus {color:#c00; text-decoration:underline;} /* 鼠标样式 */input[type="submit"] {cursor: pointer;}button {cursor: pointer;}input::-moz-focus-inner { border: 0; padding: 0;}.clear {clear:both;}

腾讯QQ官网(http://www.qq.com)样式初始化

body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select{margin:0;padding:0}body{font:12px"宋体","Arial Narrow",HELVETICA;background:#fff;-webkit-text-size-adjust:100%;}a{color:#2d374b;text-decoration:none}a:hover{color:#cd0200;text-decoration:underline}em{font-style:normal}li{list-style:none}img{border:0;vertical-align:middle}table{border-collapse:collapse;border-spacing:0}p{word-wrap:break-word}

新浪官网(http://www.sina.com.cn/)样式初始化

body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,div{margin:0;padding:0;border:0;}body{background:#fff;color:#333;font-size:12px; margin-top:5px;font-family:"SimSun","宋体","Arial Narrow";} ul,ol{list-style-type:none;}select,input,img,select{vertical-align:middle;} a{text-decoration:none;}a:link{color:#009;}a:visited{color:#800080;}a:hover,a:active,a:focus{color:#c00;text-decoration:underline;}

淘宝官网(http://www.taobao.com/)样式初始化

body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0; padding:0; }body, button, input, select, textarea { font:12px/1.5tahoma, arial, \5b8b\4f53; }h1, h2, h3, h4, h5, h6{ font-size:100%; }address, cite, dfn, em, var { font-style:normal; }code, kbd, pre, samp { font-family:couriernew, courier, monospace; }small{ font-size:12px; }ul, ol { list-style:none; }a { text-decoration:none; }a:hover { text-decoration:underline; }sup { vertical-align:text-top; }sub{ vertical-align:text-bottom; }legend { color:#000; }fieldset, img { border:0; }button, input, select, textarea { font-size:100%; }table { border-collapse:collapse; border-spacing:0; }

网易官网(http://www.163.com/)样式初始化

html {overflow-y:scroll;}body {margin:0; padding:29px00; font:12px"\5B8B\4F53",sans-serif;background:#ffffff;}div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,blockquote,p{padding:0; margin:0;}table,td,tr,th{font-size:12px;}li{list-style-type:none;}img{vertical-align:top;border:0;}ol,ul {list-style:none;}h1,h2,h3,h4,h5,h6{font-size:12px; font-weight:normal;}address,cite,code,em,th {font-weight:normal; font-style:normal;}

雅虎样式初始化

html{background:none repeat scroll 0 0#FFFFFF;color:#000000;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0 none;}address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;}li{list-style:none outside none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:"";}abbr,acronym{border:0 none;font-variant:normal;}sup{vertical-align:text-top;}sub{vertical-align:text-bottom;}input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;}input,textarea,select{}legend{color:#000000;}body{font:13px/1.231 arial,helvetica,clean,sans-serif;}select,input,button,textarea{font:99%arial,helvetica,clean,sans-serif;}table{font-size:inherit;}pre,code,kbd,samp,tt{font-family:monospace;line-height:100%;}a{text-decoration:none;}a:hover,a:focus{text-decoration:underline;}strong{font-weight:bold;}input[type="submit"]{cursor:pointer;}button{cursor:pointer;}

WEB开发者

 /* css reset www.admin10000.com */body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td { margin:0; padding:0; }body { background:#fff; color:#555; font-size:14px; font-family: Verdana, Arial, Helvetica, sans-serif; }td,th,caption { font-size:14px; }h1, h2, h3, h4, h5, h6 { font-weight:normal; font-size:100%; }address, caption, cite, code, dfn, em, strong, th, var { font-style:normal; font-weight:normal;}a { color:#555; text-decoration:none; }a:hover { text-decoration:underline; }img { border:none; }ol,ul,li { list-style:none; }input, textarea, select, button { font:14px Verdana,Helvetica,Arial,sans-serif; }table { border-collapse:collapse; }html {overflow-y: scroll;}/* css common */.clearfix:after {content: "."; display: block; height:0; clear:both; visibility: hidden;}.clearfix { *zoom:1; }

博客园

/*version: 2.7.0*/html,body{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td{    margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var,optgroup{    font-style:inherit;font-weight:inherit;}del,ins{text-decoration:none;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{    font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:baseline;}sub{vertical-align:baseline;}legend{color:#000;}input,button,textarea,select,optgroup,option{    font-family:inherit;font-size:inherit;font-style:inherit;font-weight:inherit;}input,button,textarea,select{*font-size:100%;}.clear{clear:both;}input::-moz-focus-inner{ border: 0;padding: 0;}/*added*/input[type=button],input[type=submit] {-webkit-appearance: button;}