Problem s marginom v IE

#bottom {
width: 800px; height: 30px; margin: 0 auto; padding-top: 10px; clear: both; background-color: black; color: white; text-align: center;
FONT-SIZE: 10px; font-weight: normal; font-family: Trebuchet, Verdana, Arial;
}

#middle {
height: auto; width: 782px; align: left; text-align: center; color: #27242b; background-color: white; margin: 7px 5px 10px 4px; padding: 0px; float: left;
border: 1px solid #cbcbcb
}

.stred {
height: auto; width: 660px; text-align: left; margin-bottom: 25px; float: left;
color: #27242b; background-color: white; border: 1px solid #cbcbcb
}

echo "
<div id=\"middle\">
 <div class=\"stred\">
 text
 </div>
</div>
<div id=\"bottom\"> Pätička </div>
";

body {margin: 0 auto 20px auto;}