body,h1,h2,p{margin:0;padding:0}@media(min-width:769px){body,html{min-width:1200px}}.back-to-top{background:#006a57;border:none;border-radius:50%;bottom:80px;box-shadow:0 6px 16px #0003;color:#fff;cursor:pointer;font-size:22px;height:42px;line-height:1;position:fixed;right:20px;transition:transform .2s ease,opacity .2s ease;width:42px;z-index:9999}.back-to-top:hover{transform:translateY(-2px)}