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css初始化代码方案 ——转

为什么要初始化CSS?

CSS初始化是指重设浏览器的样式(即reset.css)。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。

 

为了消除各浏览器对css默认的设置,保持网页在各浏览器中的外观保持一致,初始化css就显得非常必要了!很多时候出现的样式不兼容问题,都可以通过css初始化代码来解决。下面列举常用的一些方案:

1.最耗资源的,最简单的

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

2.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;}

3.sina的

/* 全局样式 */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;} 

4.yahoo的

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;}

5.博客园的

 

/*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;}

6.admin10000.com
/* 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; }

上面是admin10000.com使用的CSS重置代码,这段代码是我比较喜欢用的一种方式,虽然还不够完美但是常用的几乎已经都包括了。

各主流浏览器下的默认css样式:ie6  |  ie7  |  ie8  |  ie9  | Firefox 3.6.3  |  Webkit (r57042)  | Opera 10.51  

css初始化代码方案 ——转