.to-top{position:fixed;bottom:2rem;right:2rem;background:#fff;padding:.5rem;box-shadow:0 0 2rem rgba(51,51,51,.25);opacity:0;transition:1s ease-in-out;pointer-events:none;border:2px solid #333}.to-top img{transform:rotate(180deg);width:2rem;height:2rem}.to-top.visible{opacity:1;pointer-events:all}@media(max-width:767.98px){.to-top{bottom:4rem;right:1rem;padding:.25rem}.to-top img{width:1.25rem;height:1.25rem}}