div[class*=block] div[class*=parallax]{height:300px;width:100%;position:relative;}
div[class*=block] div[class*=parallax] .bg-wrap{clip:rect(0, auto, auto, 0);position:absolute;top:0;left:0;width:100%;height:100%;}
div[class*=block] div[class*=parallax] .bg-wrap > .bg-image{position:fixed;display:block;top:0;left:0;width:100%;height:100%;
    /*background-size: cover;*/
    background-position:center center;transform:translateZ(0);will-change:transform;}
div[class*=block] div[class*=parallax] .text{position:relative;top:50%;-webkit-transform:translateY(-50%);-ms-transform:translateY(-50%);transform:translateY(-50%);z-index:999;}
div[class*=block] div[class*=parallax] .text > .bg{position:absolute;width:100%;height:100%;left:0;top:0;z-index:-1;}