<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>获取样式</title>
<style>
#div1{
width:200px;
height:200px;
background: #f00;
border:4px solid #000;
font-size:12px;
color: #fff;;
}
</style>
<script>
window.onload=function(){
startMove();
};
function startMove(){
setInterval(function(){
var oDiv=document.getElementById('div1');
oDiv.style.width = parseInt(getStyle(oDiv,'width')) - 1 + 'px';
oDiv.style.fontSize = parseInt(getStyle(oDiv,'fontSize')) + 1 + 'px';
},30)
}
function getStyle(obj,attr){ //封装函数，获取样式专用
if(obj.currentStyle){
return obj.currentStyle[attr]; //currentStyle针对IE浏览器
}else{
return getComputedStyle(obj,false)[attr]; //getComputedStyle针对firefox专用
}
}
</script>
</head>
<body>
<div id="div1">啦啦啦啦</div>
</body>
</html>
