.ImagePasteTarget 
{
    width: 200px;
    height: 200px;
    border: 1px dashed #CCCCCC;
    background: #EEEEEE;
    text-align: center;
    position: relative;
}

.ImagePasteTarget-SpoofedInput 
{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 0;
    opacity: .01;
}