.controlsBg { 
    border-radius:5px;
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
    opacity: 0.55;
    background-color: black;
}

.controlsBtn {
    width: 18px;
    height: 18px;
    display: block;
    position: absolute;
    z-index: 3;
    opacity: 0.7;
}

.controlsTxt {
    display: block;
    position: absolute;
    z-index: 7;
    opacity: 0.7;
    font-size:12px;     
}