.back2top{display:flex;align-items:center;justify-content:center;width:38px;height:38px;position:fixed;visibility:hidden;border:1px solid rgba(0,0,0,0.15);border-radius:5px;background-color:rgba(255,255,255,0.5)}.back2top.is-visible{visibility:visible}@media (min-width: 320px){.back2top{right:16px}}@media (min-width: 768px){.back2top{right:20px}}@media (min-width: 1024px){.back2top{right:30px}}@media (min-width: 320px){.back2top{bottom:16px}}@media (min-width: 768px){.back2top{bottom:20px}}@media (min-width: 1024px){.back2top{bottom:30px}}.back2top svg{transform:rotate(-90deg);transform-origin:50% 50%;margin:auto}.back2top span{display:none}@media (min-width: 768px){.back2top{width:auto;height:32px;padding:0 10px 0 5px;white-space:nowrap}.back2top:hover{background-color:#fff}.back2top svg,.back2top span{float:left;display:inline-block}.back2top svg{width:20px;height:20px;margin-right:6px}}