.scrollToTopButton{cursor:pointer;opacity:0;transform:translateY(20px);transition:opacity .3s ease-in-out,transform .3s ease-in-out,background-color .3s ease}.scrollToTopButton.visible{opacity:1;transform:translateY(0)}.scrollToTopButton:hover{animation:pulse 1.5s infinite}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(231,99,25,.7)}70%{box-shadow:0 0 0 10px rgba(231,99,25,0)}to{box-shadow:0 0 0 0 rgba(231,99,25,0)}}