.text_form   { color: #303D43; font-size: 9pt; font-family: Tahoma }
.text_campos { font-family: Tahoma; font-size: 8pt; color: #333333 }
/*.text_link { color: red; font-size: 9pt; font-family: Tahoma ; font-weight:bold; }*/
.tdclass
{
  color:white;
  background:transparent url(../images/menubk.gif) repeat-x scroll left top;
  font-family:Arial,Verdana,Helvitica,sans-serif;
  font-size:11px;
  font-weight:bold;
  height:33px;
  /*vertical-align:middle;*/
  text-align:center;
  padding-left:20px;
  padding-right:20px;
  width:246PX;
}
.imgtxt
{
  color:white;
  text-decoration:none;  
}
a:hover
{
  color:yellow;
  text-decoration:underline;
}
<!--menu-->
@charset "utf-8";
/* CSS Document */

.top_menu{
	background-color:#e3ecf3;
	width:1000px;
	height:25px;
	float:left;
	margin:0 0 0 0 px;
	padding:5px 0 0 0px;
	}
	
.top_menu ul{
	width:1000px;
	margin:0px 0 0 0px;
	padding:0 0 0 150px;
	display:inline;
	list-style:none;
	}	
	
.top_menu li{
	font-family:Arial, Helvetica, sans-serif;
	font-size:14px;
	font-weight:bold;
	color:#333;
	margin:0 0 0 0px;
	padding:0 5px 0 5px;
	display:inline;
	list-style:none;
	}		
	
.top_menu li a{
	color:#333;
	text-decoration:none;
	}
	
.top_menu li a:hover{
	color:#000;
	text-decoration:underline;
	}	


<!--menu-->