Things beak easily in IE8 beta
Test
Expected Result
HTML + CSS
<![CDATA[
<style>
div{
zoom:1;
border:solid 3px red;
}
div input{
float: left;
}
div:after{
content:'';
display:block;
clear:both;
}
</style>
<form>
<div>
you can't type anything in the textbox for IE8
<input type="text" />
</div>
</form>
]]>