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CSS Reset,意为重置默认样式。HTML中绝大部分标签元素在网页显示中都有一个默认属性值,通常为了避免重复定义元素样式,需要进行重置默认样式(CSS Reset)。举几个例子:
1.淘宝(CSS Reset):
html {
overflow-x:auto;
overflow-y:scroll;
}
body, dl, dt, dd, ul, ol, li, pre, form, fieldset, input, p, blockquote, th, td {
font-weight:400;
margin:0;
padding:0;
}
h1, h2, h3, h4, h4, h5 {
margin:0;
padding:0;
}
body {
background-color:#FFFFFF;
color:#666666;
font-family:Helvetica,Arial,sans-serif;
font-size:12px;
padding:0 10px;
text-align:left;
}
select {
font-size:12px;
}
table {
border-collapse:collapse;
}
fieldset, img {
border:0 none;
}
fieldset {
margin:0;
padding:0;
}
fieldset p {
margin:0;
padding:0 0 0 8px;
}
legend {
display:none;
}
address, caption, em, strong, th, i {
font-style:normal;
font-weight:400;
}
table caption {
margin-left:-1px;
}
hr {
border-bottom:1px solid #FFFFFF;
border-top:1px solid #E4E4E4;
border-width:1px 0;
clear:both;
height:2px;
margin:5px 0;
overflow:hidden;
}
ol, ul {
list-style-image:none;
list-style-position:outside;
list-style-type:none;
}
caption, th {
text-align:left;
}
q:before, q:after, blockquote:before, blockquote:after {
content:””;
}
2.百度(CSS Reset):
body {
font-family:arial,helvetica,sans-serif;
font-size:13px;
font-size-adjust:none;
font-stretch:normal;
font-style:normal;
font-variant:normal;
font-weight:normal;
line-height:1.4;
text-align:center;
}
body, ul, ol, dl, dd, h1, h2, h3, h4, h5, h6, p, form, fieldset, legend, input, textarea, select, button, th, td {
margin:0;
padding:0;
}
h1, h2, h3, h4, h5, h6 {
font-size:100%;
font-weight:normal;
}
table {
font-size:inherit;
}
input, select {
font-family:arial,helvetica,clean,sans-serif;
font-size:100%;
font-size-adjust:none;
font-stretch:normal;
font-style:normal;
font-variant:normal;
font-weight:normal;
line-height:normal;
}
button {
overflow:visible;
}
th, em, strong, b, address, cite {
font-style:normal;
font-weight:normal;
}
li {
list-style-image:none;
list-style-position:outside;
list-style-type:none;
}
img, fieldset {
border:0 none;
}
ins {
text-decoration:none;
}
3.《超越css》(CSS Reset):
/* Normalizes margin,padding */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,p,blockquote,th,td { margin:0;padding:0}
/* Normalizes font-size for headers */
h1,h2,h3,h4,h5,h6 { font-size:100%}
/* Removes list-style from lists */
ol,ul { list-style:none }
/* Normalizes font-size and font-weight to normal */
address,caption,cite,code,dfn,em,strong,th,var { font-size:normal; font-weight:normal }
/* Removes list-style from lists */
table { border-collapse:collapse; border-spacing:0 }
/* Removes border from fieldset and img */
fieldset,img { border:0 }
/* Left-aligns text in caption and th */
caption,th { text-align:left }
/* Removes quotation marks from q */
q:before,q:after { content:”}
4.Eric Meyer(CSS Reset)——推荐:
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
margin: 0;
padding: 0;
border: 0;
outline: 0;
font-size: 100%;
vertical-align: baseline;
background: transparent;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: ”;
content: none;
}
/* remember to define focus styles! */
:focus {
outline: 0;
}
/* remember to highlight inserts somehow! */
ins {
text-decoration: none;
}
del {
text-decoration: line-through;
}
/* tables still need ‘cellspacing=”0″‘ in the markup */
table {
border-collapse: collapse;
border-spacing: 0;
}
5.YUI(CSS Reset):
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,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 {
font-style:normal;
font-weight:normal;
}
ol,ul {
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;
}
———————
作者:Eason_Severus
来源:CSDN
原文:https://blog.csdn.net/eason_severus/article/details/53665074
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