div.image-list
{
    float:left;
    width: 100%;
    min-height: 100%;    
}

div.image-list img
{
    float: left;
    position: relative;
    max-height: 60px;
    margin-right: 10px;  
    margin-top: 10px;
    opacity: 0.7;
    filter: alpha(opacity = 70);
}

div.image-list img:hover
{
    opacity: 1.9;
    filter: alpha(opacity = 100);
}