@-webkit-keyframes bt-slideUpEffect{0%{-webkit-transform:translateY(100px);-ms-transform:translateY(100px);transform:translateY(100px)}100%{-webkit-transform:translateY(0);-ms-transform:translateY(0);transform:translateY(0)}}@keyframes bt-slideUpEffect{0%{-webkit-transform:translateY(100px);-ms-transform:translateY(100px);transform:translateY(100px)}100%{-webkit-transform:translateY(0);-ms-transform:translateY(0);transform:translateY(0)}}#site_backtop{position:fixed;right:30px;bottom:50px;width:40px;height:40px;font-size:16px;font-weight:400;line-height:38px;text-align:center;outline:medium none;color:#333;background:#fff;border:1px solid #1c1c1c;cursor:pointer;display:none;z-index:999;-webkit-transition:all 0.4s ease 0s;-ms-transition:all 0.4s ease 0s;transition:all 0.4s ease 0s}#site_backtop.rounded{-webkit-border-radius:5px;border-radius:5px}#site_backtop.circle{-webkit-border-radius:50%;border-radius:50%}#site_backtop:hover{color:#fff;background:#00abc9;border-color:#00abc9}#site_backtop.active{display:block;-webkit-animation:bt-slideUpEffect 1.2s both;-ms-animation:bt-slideUpEffect 1.2s both;animation:bt-slideUpEffect 1.2s both}