.topslideshow {
    width: 782px;  
    height: 140px;
    overflow: hidden;  
    border: 0px solid #F2F2F2;  
	padding-top: 15px;
}  
.topslideshow ul {  
/* 4 images donc 4 x 100% */  
    width: 3120px;  
    height: 140px;
    padding:0px; margin:0px;
    list-style: none;
}  
.topslideshow li {  
    float: left;  
}