#mission
{
    position: fixed;
    bottom: 0;
    right: 0;
    color: #FFF;
    padding: 50px;
    font-size: 3em;
}
#bg
{
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    z-index: -1;
}
#bg IMG
{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    min-width: 50%;
    min-height: 50%;
}