making DIV, thats works for FF & IE Options

[themusicworld205...]

how can i make a DIV that works the same in internet explorer and in firefox
cause i have been having A LOT of problems that my profile looks good in firefox but sux in internet explorer

these are examples which is better for the both browsers?
or give your examples

CODE

<style>
.div1 {
background-color:000000; color:000000;
border:0px solid; border-color:silver;
width:400px; height:100px; overflow:auto;
position:absolute; z-index:2; left:50%; top:0%;
margin-left:-250px; margin-top:150px;
visibility:visible;}
</style>


<div class="div1">
content
</div>

or

CODE

<div style="position: absolute; overflow:hidden; left:50%; margin-left:125px; _margin-top: 415px; margin-top: 415px; top: 50%px; width: 225px; height: 150px; background-color:CF0000;">
CONTENT
</div>

HELP i been trying to solve this since along time !!!