.sentinela-mask{-webkit-mask-image:linear-gradient(#0000,#000 16% 84%,#0000);mask-image:linear-gradient(#0000,#000 16% 84%,#0000)}.sentinela-stream{animation:36s linear infinite sentinela-rise}@keyframes sentinela-rise{0%{transform:translate(0,0)}to{transform:translateY(-50%)}}