css初始化表
2021-03-05 09:26
标签::hover rap list cti 如何 新浪 sam 就是 style 建站老手都知道,这是为了考虑到浏览器的兼容问题,其实不同浏览器对有些标签的默认值是不同的,如果没对CSS初始化往往会出现浏览器之间的页面差异。当然,初始化样式会对SEO有一定的影响,但鱼和熊掌不可兼得,但力求影响最小的情况下初始化。最简单的初始化方法就是: * {padding: 0; margin: 0;} 。有很多人也是这样写的。这确实很简单,但有人就会感到疑问:*号这样一个通用符在编写代码的时候是快,但如果网站很大,CSS样式表文件很大,这样写的话,他会把所有的标签都初始化一遍,这样就大大的加强了网站运行的负载,会使网站加载的时候需要很长一段时间。写过css的都知道每个网页引进的css首先都需要初始化,而出名的css reset有YUI css reset(QQ、淘宝等都出现他的影子),业内用的最多的还有Erik Meyer’s CSS Reset。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。 css初始化表 标签::hover rap list cti 如何 新浪 sam 就是 style 原文地址:https://www.cnblogs.com/ssjd/p/12909144.html为什么要初始化CSS?
雅虎工程师提供的CSS初始化示例代码
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;
}
.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}
.clearfix {
*zoom: 1;
}
腾讯官网 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 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 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/1.5 tahoma, 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 样式初始化
html {
overflow-y: scroll;
}
body {
margin: 0;
padding: 29 px00;
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;
}