.back-to-top{background:#fff;display:block;text-align:center;width:44px;line-height:44px;border-radius:3px;-webkit-box-shadow:0 0 4px rgba(0,0,0,.5);box-shadow:0 0 4px rgba(0,0,0,.5);opacity:1;-webkit-transition:opacity .5s;transition:opacity .5s}.back-to-top:hover{text-decoration:none}.back-to-top.back-to-top--round{border-radius:27px}.back-to-top.back-to-top--sticky{position:fixed;bottom:0;right:0;margin:16px 3.75%}@media (max-width:650px){.back-to-top.back-to-top--sticky{margin:16px}}@media (min-width:651px) and (max-width:999px){.back-to-top.back-to-top--sticky{margin:16px 3.4375%}}.back-to-top.back-to-top--unnecessary{opacity:0;pointer-events:none}@media print{.back-to-top{display:none}}