.item, .alternatingItem
{	 
   float: left;
   padding: 15px;
   margin: 5px;
   width: 200px;
   height: 140px;
   border: 1px solid threedshadow;
   background-color:Red; 
   
   border:none !important;
}
.item
{
   background: whitesmoke !important;
}
.alternatingItem
{
   background: window !important;
}
.item:hover, .alternatingItem:hover
{
   background: silver !important;
} 