img.gallery {
    float:left;
    border: 7px dotted white;
    width:44%;
    margin:1%;
    padding:1%;
}

html, body {
    height: 100%;
}

div.main {
    width: 1000px;
}

#colors {
    width: 1000px;
    height: 100%;
    margin-left: 10px;
    float:left;
    opacity:0.5;
    background-color: #FFFFFF;
    position:absolute;
}