.thumb a {
    display: block;
    position: relative;
    /*double layered BG for lighting effect*/
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url("bkground-Pics/bkgrnd_pic143.jpg");
    /*disabling the translucent black bg on the main image*/
    background-size: 0, cover;
    /*3d space for children*/
    transform-style: preserve-3d;
    transition: all 0.5s;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
}