CSS Filter渐变
<html>
<style>
.mainContainer{
filter:progid:DXImageTransform.Microsoft.Gradient(startColorStr=red, endColorStr=yellow, gradientType='0');
}
</style>
<body>
<div class="mainContainer" style="width:200px;height:200px;">
<p>hello world!</p>
</div>
</body>
</html>
