how do i add a background image to a gradient background in css. here my code
input.button-add {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    color: #ffffff;
    padding: 4px 4px;
    background: -moz-linear-gradient(
        top,
        #ff2819 0%,
        #ff0d0d);
    background: -webkit-gradient(
        linear, left top, left bottom,
        from(#ff2819),
        to(#ff0d0d));
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    border: 1px solid #ffffff;
    -moz-box-shadow:
        0px 1px 1px rgba(000,000,000,0.5),
        inset 0px 0px 2px rgba(255,255,255,0.7);
    -webkit-box-shadow:
        0px 1px 1px rgba(000,000,000,0.5),
        inset 0px 0px 2px rgba(255,255,255,0.7);
    box-shadow:
        0px 1px 1px rgba(000,000,000,0.5),
        inset 0px 0px 2px rgba(255,255,255,0.7);
is it possible and if its possible how?
 
    