CSS Menu Dropdown menu doens't work in IE 9

I created a CSS Menu Dropdown in an online site for my website and it works perfectly in Chrome and Firefox, but in IE 9 doesn't... Can somebody help me?

The site:

teste_hcpdl.htm

The CSS:

<style type="text/css">#cssmenu ul,
#cssmenu li,
#cssmenu span,
#cssmenu a {
margin: 0;
padding: 0;
position: relative;
}
#cssmenu:after,
#cssmenu ul:after {
content: '';
display: block;
clear: both;
}
#cssmenu a {
color: #ffffff;
display: inline-block;
font-family: 'Verdana' sans-serif;
font-size: 13px;
min-width: 35px;
text-align: center;
text-decoration: none;
text-shadow: 0 -1px 0 #333333;
}
#cssmenu ul {
list-style: none;
}
#cssmenu > ul > li {
float: left;
}
#cssmenu > ul > li.active a {
background: #646464 url(menu_assets/images/grad_dark.png) repeat-x left bottom;
background: -moz-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #646464), color-stop(100%, #4a4a4a));
background: -webkit-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: -o-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: -ms-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: linear-gradient(to bottom, #646464 0%, #4a4a4a 100%);
filter: progid:dximagetransform.microsoft.gradient(startColorstr='#646464', endColorstr='#4a4a4a', GradientType=0);
box-shadow: inset 0 0 10px #222222, inset 0 10px 10px #222222;
-moz-box-shadow: inset 0 0 10px #222222, inset 0 10px 10px #222222;
-webkit-box-shadow: inset 0 0 10px #222222, inset 0 10px 10px #222222;
filter: none;
}
#cssmenu > ul > li.active a:hover {
background: -moz-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #646464), color-stop(100%, #4a4a4a));
background: -webkit-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: -o-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: -ms-linear-gradient(top, #646464 0%, #4a4a4a 100%);
background: linear-gradient(to bottom, #646464 0%, #4a4a4a 100%);
filter: progid:dximagetransform.microsoft.gradient(startColorstr='#646464', endColorstr='#4a4a4a', GradientType=0);
filter: none;
}
#cssmenu > ul > li a {
box-shadow: inset 0 0 0 1px #8a8a8a;
-moz-box-shadow: inset 0 0 0 1px #8a8a8a;
-webkit-box-shadow: inset 0 0 0 1px #8a8a8a;
background: #4a4a4a url(menu_assets/images/grad_dark.png) repeat-x left top;
background: -moz-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #8a8a8a), color-stop(50%, #707070), color-stop(51%, #626262), color-stop(100%, #787878));
background: -webkit-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
background: -o-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
background: -ms-linear-gradient(top, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
background: linear-gradient(to bottom, #8a8a8a 0%, #707070 50%, #626262 51%, #787878 100%);
filter: progid:dximagetransform.microsoft.gradient(startColorstr='#8a8a8a', endColorstr='#787878', GradientType=0);
border-bottom: 1px solid #5d5d5d;
border-top: 1px solid #5d5d5d;
border-right: 1px solid #5d5d5d;
line-height: 34px;
padding: 0 35px;
filter: none;
}
#cssmenu > ul > li a:hover {
background: #8a8a8a url(menu_assets/images/grad_dark.png) repeat-x left bottom;
background: -moz-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #646464), color-stop(50%, #4a4a4a), color-stop(51%, #3b3b3b), color-stop(100%, #525252));
background: -webkit-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
background: -o-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
background: -ms-linear-gradient(top, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
background: linear-gradient(to bottom, #646464 0%, #4a4a4a 50%, #3b3b3b 51%, #525252 100%);
filter: progid:dximagetransform.microsoft.gradient(startColorstr='#8a8a8a', endColorstr='#787878', GradientType=0);
filter: none;
}
#cssmenu > ul > li:first-child a {
border-radius: 5px 0 0 5px;
-moz-border-radius: 5px 0 0 5px;
-webkit-border-radius: 5px 0 0 5px;
border-left: 1px solid #5d5d5d;
}
#cssmenu > ul > li:last-child a {
border-radius: 0 5px 5px 0;
-moz-border-radius: 0 5px 5px 0;
-webkit-border-radius: 0 5px 5px 0;
}
#cssmenu .has-sub:hover ul {
display: block;
}
#cssmenu .has-sub ul {
display: none;
position: absolute;
top: 36px;
left: -1px;
min-width: 100%;
text-align: center;
/* IE7 */

*width: 100%;
}
#cssmenu .has-sub ul li {
text-align: center;
}
#cssmenu .has-sub ul li a {
border-top: 0 none;
border-left: 1px solid #5d5d5d;
display: block;
line-height: 120%;
padding: 9px 5px;
text-align: center;
}
</style>
<link href="/menu_assets/styles.css" rel="stylesheet" type="text/css">

The HTM:

<div id='cssmenu'>
<ul>
<li> <a href='plugins/index.html'>INICIO</a></li>
<li class='has-sub '><a href='#'>ESCALÕES</a>

<ul>
<li><a href='#'>Séniores</a></li>
<li><a href='#'>Juniores</a></li>
<li><a href='#'>Juvenis</a></li>
<li><a href='#'>Iniciados</a></li>
<li><a href='#'>Infantis</a></li>
</ul>
</li>
<li><a href='#'>CLUBE</a></li>
<li><a href='#'>MULTIMÉDIA</a></li>
<li><a href='#'>SÓCIOS</a></li>
<li><a href='#'>PARCEIROS</a></li>
<li><a href='#'>CONTATOS</a></li></ul>
</div>

Ty.

Technical Support Forums

Free, outstanding support from WebAssist and your colleagues

10/02/2012 2:40 pmbrunim.soares.5442819