#btnShowAllVG
{
    position: absolute;
    bottom: 0;
    width: 100%;
    color: white;
    text-align: center;
    background-color: #333;
    display: block;
    border: 3px #444 double;
    border-radius: 25px;
}

#btnShowAllVG:hover
{
    color: black;
    text-align: center;
    background-color: white;
    display: block;
    border: 3px #444 double;
    border-radius: 25px;
}