.waves-bg{mask-image:linear-gradient(180deg,transparent 0,#000 18%,#000 82%,transparent);-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 18%,#000 82%,transparent)}.waves-bg--no-top-fade{mask-image:linear-gradient(180deg,#000 0,#000 82%,transparent);-webkit-mask-image:linear-gradient(180deg,#000 0,#000 82%,transparent)}.waves-bg--no-mask{mask-image:none;-webkit-mask-image:none}.waves-bg canvas{display:block}