.main_image {
    width: 605px;
    height: 273px;
    float: left;
    
    position: relative;
    overflow: hidden; /*--Overflow hidden allows the description to toggle/tuck away as it slides down--*/
    color: #fff;
}


.


.main_image a.collapse { /*--This is our hide/show tab--*/
    background: url(btn_collapse.gif) no-repeat left top;
    height: 27px;
    width: 93px;
    text-indent: -99999px;
    position: absolute;
    top: -27px;
    right: 20px;
}
.main_image a.show {background-position: left bottom;}
image_thumb section CSS

.image_thumb {
    float: left;
    width: 340px;
   /* background: #f0f0f0;*/
    border-right: 0px solid #fff;
    border-top: 0px solid #ccc;
   
}
.image_thumb img {
    border: 0px solid #ccc;
    padding: 0px 0 0px 8px;
    /*background: #fff;*/
    float: left;
}


/* tooltip styling. by default the element to be styled is .tooltip  */
.tooltip {
	display:none;
	background:transparent url(/tools/img/tooltip/black_arrow.png);
	font-size:12px;
	height:70px;
	width:160px;
	padding:25px;
	color:#fff;	
}