相同的元素，
如ul>li,body等元素在不同的瀏覽器下被渲染的效果不同（各個瀏覽器對這些元素的border,margin,padding，font-size等等的初始值不同），
css初始化：
通過CSS強制讓屬性值一樣！！
初始化腳本
Yahoo提供的css reset 腳本:
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;
}
腾讯QQ官网(http://www.qq.com)初始化
body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select{margin:;padding:}
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:;vertical-align:middle}
table{border-collapse:collapse;border-spacing:}
p{word-wrap:break-word}
新浪官网(http://www.sina.com.cn/)初始化
body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,div{margin:;padding:;border:;}
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/)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:; padding:; }
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:; }
button, input, select, textarea { font-size:100%; }
table { border-collapse:collapse; border-spacing:; }
网易官网(http://www.163.com/)初始化
html {overflow-y:scroll;}
body {margin:; padding:29px 0 0; 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:; margin:;}
table,td,tr,th{font-size:12px;}
li{list-style-type:none;}
img{vertical-align:top;border:;}
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;}
博客园(http://www.cnblogs.com/)初始化
/*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:;padding:;
}
table{border-collapse:collapse;border-spacing:;}
fieldset,img{border:;}
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:;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:;padding:;} /*added*/
input[type=button],input[type=submit] {-webkit-appearance: button;}
列舉這個的目錄，是希望針對自己的情況有針對性的對自己公司的網站進行初始化設置，而不是照搬。
目前使用的是Yahoo的CSS初始化。
