/*------------DropDown hidden_text Begin-------------*/	

div#hidden_text{
	display: block;
	position:fixed;
	top: 600px;
	z-index: 1;
}

/*#hidden_text li {position: relative;}*/

div#hidden_text h4
{
display: none;
z-index: 1;
}

div#hidden_text a:hover
{
display: block;
z-index: 1;
}

/*------------DropDown Menu Begin End-------------*/
.links ul li {
>   float: left;
>   /* position: relative; */
>   /* z-index: 1; */
>   }
>
>
> - add
> .links li:hover, li.over {
>   position: relative;
>   z-index: 1
>   };
>
> - remove every other z-index instance from your style sheet. [1]