body {
    background-color: #aaa;
    margin: 20px;
}

#canv {
    float: left;
    z-image:5;
}

#mouse {
    position: absolute;
    top: 0px;
    left: 0px;
}

#back {
    background-color: #fff;
    width: 300px;
    height: 300px;
    opacity: 0.5;
    position: absolute;
    z-image:2;
}

#pages {
    float: right;
    width: 600px;
    height: 300px;
    background-color: #bbb;
    overflow: auto;
}

#tools span {
    padding: 2px 5px;
    background-color: #bbb;
    border: 2px solid black;
    cursor:pointer;
}

#tools {
    position: absolute;
    top: 328px;
    left: 28px;
}

#pages img {
    width: 100px;
    height: 100px;
}
#pages img:hover {
    border:2px solid black;
}