.image.first,.image.second {
border:2px solid transparent;
margin:0;
padding:0;
}

.image.first {
opacity:1px;
display:block;
position:absolute;
z-index:100;

}

.image.first:hover {
opacity:0.00;
}
 
div.ImgField {
display:inline-block;
background-position:center center;
background-repeat:no-repeat;
margin:0;
padding:0;
}