.bg {
    position: relative;
    width: 100%;
    padding-top: 20px;
    z-index: 2;
    min-height: 500px;
    -moz-transform: translateZ(0);
    -ms-transform: translateZ(0);
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    background-color: rgba(59,77,112,.8);
}