.parallax-wrapper { position: relative; overflow: hidden; background-color: #828282; }
.parallax-box { position: relative; width: 100%; height: 100%; background-position: center center; background-repeat: no-repeat; background-size: cover; will-change: transform;}
.parallax-content { position:absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 100%; }
.parallax-content * { color:#fff; }