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<!DOCTYPE HTML><html lang="zh-cn">
<head><meta charset="utf-8"
/>
<meta http-equiv="Content-Language"
content="zh-cn"
/>
<title>css函数</title><meta name="keywords"
content=""
/>
<meta name="description"
content=""
/>
<style type="text/css">
*{ margin: 0px; padding: 0px; font-size:14px; font-family:‘微软雅黑‘;
}.clearfix:after{content:‘.‘;display:block;height:0;clear:both;visibility:hidden}
.clearfix{display:inline-block;}* html .clearfix{height:1%}.clearfix{display:black;}ul li{ list-style:none;font-size:14px; height:20px; line-height:20px; width:320px;
}ul li.new{
color:red;
}</style></head><body><script type="text/javascript">
window.onload = function(){ var
oBox = $(‘box‘);
var
oLi = oBox.getElementsByTagName(‘li‘);
for(var
i=0;i<oLi.length;i++){
css(oLi[i],‘color‘,‘red‘);
}
alert(css(oLi[0],‘fontSize‘));
}function css(obj,name,value){ if(arguments.length == 2){
if(obj.currentStyle){
return
obj.currentStyle[name];
}else{
return
getComputedStyle(obj,false)[name];
}
}else{
return
obj.style[name] = value;
};
}function $(id){ return
document.getElementById(id);
}</script> <ul id=‘box‘>
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</ul></body></html> |
arguments来判断传入参数的的个数
currentStyle IE下获取元素的最终样式
getComputedStyle 火狐获取下元素的最终样式