#show-case
{
    height: 400px;
    position: relative;
}

#show-case img 
{
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    margin: auto;
    display: block;
    max-width: 100%;
    max-height: 100%;
    position: absolute;
}