.grid-anima{height:200vh;width:100%;position:fixed;background-image:linear-gradient(90deg,#f0f0f0 1px,#00000000 0),linear-gradient(180deg,#f0f0f0 1px,#00000000 0);background-size:2.5rem 2.5rem;background-position:50%;background-repeat:repeat;animation:scroll-y 30s linear infinite;margin-top:0;overflow-y:hidden}@keyframes scroll-y{to{margin-top:-360px}}