html, body {
    background: black;
    text-align: center;
    margin: 0;
}
#root {
    background: black url(2index.png) no-repeat bottom;
    height: 728px; /*768px*/
    width: 1024px;
    margin: 0 auto;
    text-align: center;
}
#portfolio {
    position: relative;
    top: 72%;
    width: 530px;
    margin: auto auto;
}
#portfolio td {
    width: 135px;
}
#portfolio img{
    cursor: pointer;
}
a img {
    border: 0px;
}