.header-gradient-blur{backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);mask-image:linear-gradient(180deg,black 0,black 20%,rgba(0,0,0,.8) 40%,rgba(0,0,0,.4) 70%,transparent);-webkit-mask-image:linear-gradient(180deg,black 0,black 20%,rgba(0,0,0,.8) 40%,rgba(0,0,0,.4) 70%,transparent)}