div taggar syns inte i Firefox och Opera

Blir knäpp va kan vara fel med mina div taggar och Css?
här under följer koden: funkar utmärkti explorer men inte i firefox och opera.
CSS'en
------------------------------------------------------------------
body {
font:normal 100% georgia,helvetica,verdana,tahoma,arial,"sans serif";
}

.dialog {
width:100%;
margin:0px auto;
min-width:20em;
color:#fff;
}

.dialog .hd .c,
.dialog .ft .c {
font-size:1px; /* ensure minimum height */
height:11px;
}

.dialog .ft .c {
height:14px;
}

.dialog .hd {
background:transparent url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\tl.gif) no-repeat 0px 0px;
}

.dialog .hd .c {
background:transparent url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\tr.gif) no-repeat right 0px;
}

.dialog .bd {
background:transparent url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\ml.gif) repeat-y 0px 0px;
}

.dialog .bd .c {
background:transparent url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\mr.gif) repeat-y right 0px;
}

.dialog .bd .c .s {
margin:0px 8px 0px 4px;
background:#000 url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\ms.jpg) repeat-x 0px 0px;
padding:1em;
}

.dialog .ft {
background:transparent url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\bl.gif) no-repeat 0px 0px;
}

.dialog .ft .c {
background:transparent url(file:///C:\Inetpub\wwwroot\wfmdotnet\GRAPHICS\box\br.gif) no-repeat right 0px;
}

/* content-specific */

.dialog h1 {
/* header */
font-size:2em;
margin:0px;
padding:0px;
margin-top:-0.6em;
}

.dialog p {
margin:0.5em 0px 0px 0px;
padding:0px;
font:0.95em/1.5em arial,tahoma,"sans serif";
}

html>body .dialog pre {
font-size:1.1em;
}
------------------------------------------------------------------------
div taggarna
<div>

<div class="dialog">
<div class="hd"><div class="c"></div></div>
<div class="bd">
<div class="c">
<div class="s">

\<!-- content area --\>

sdfsdffsd<br>
sdfsdffsd<br>
sdfsdffsd<br>
sdfsdffsd<br>
sdfsdffsd<br>
sdfsdffsd<br>

\<!-- content area --\>

</div>
</div>
</div>
<div class="ft"><div class="c"></div></div>
</div>

</div>