#gravity {
    width: 100%;
    margin: 5px 0;
    border-spacing: 5px
    }
#gravity td {
    text-align: center;
    vertical-align: middle;
    padding: 5px 0;
    background-color: #d0d0d0
    }
#gravity a:hover {
    color: #505050;
    background: none
    }