html,body {
    background-repeat: repeat-y;
    background-position:bottom;
}

#wrapper {
    background: rgba(20, 26, 34, 0.5);
}

.ra1 {
    background: #000 url(../images/bg-1.jpg);
}

.td{
    background: #000 url(../images/bg-2.jpg);
}

.ts {
    background: #000 url(../images/bg-3.jpg);
}

.ra2 {
    background: #000 url(../images/bg-4.jpg);
}