html, body {
    margin: 0px;
    padding: 0px;
    border: 0px;
}

div.fullscreen {
    width: 100%;
    position: absolute;
    bottom: 0;
    margin-left: 0px;
    margin-top: 0px;
}

img.fullscreen
{
    position: relative;
    width: 100%;
    display: block;
    float: left;
}