#ball-effect {
    position: fixed;
    z-index: 999;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    width: 0px;
    height: 0px;
    pointer-events: none;
    /*mix-blend-mode: difference;*/
}

#ball-effect .circle {
    position: absolute;
    width: 0px;
    height: 0px;
    border-radius: 50%;
    background: rgba(255,255,255,.8);
    *display: -webkit-box;
    *display: -webkit-flex;
    *display: -ms-flexbox;
    *display: flex;
    *-webkit-box-pack: center;
    *-webkit-justify-content: center;
    *-ms-flex-pack: center;
    *justify-content: center;
    *-webkit-box-align: center;
    *-webkit-align-items: center;
    *-ms-flex-align: center;
    *align-items: center;
    -webkit-transition: .25s;
    -o-transition: .25s;
    transition: .25s
}

@media only screen and (max-width: 1200px) {
    #ball-effect {
        opacity:0
    }
}