.btt{animation-duration:.45s;animation-fill-mode:forwards;animation-name:bounceOut;animation-timing-function:linear;opacity:0;visibility:hidden;visibility:visible}.btt a{background:var(--srm-orange);border-radius:50%;color:#fff;display:inline-block;padding:5px 17px}.lt-ie9 .btt{display:none}.no-js .back-to-top{opacity:1;visibility:visible}.btt--static{bottom:2.4rem;margin:0;padding:0;position:fixed;right:2.4rem;text-align:center;will-change:transform;z-index:var(--z-999)}.btt--active{animation-duration:.45s;animation-fill-mode:forwards;animation-name:bounceIn;animation-timing-function:linear;opacity:1;visibility:visible}@keyframes bounceIn{0%{opacity:0;transform:scale(.3) translateZ(0)}50%{opacity:.9;transform:scale(1.1)}80%{opacity:1;transform:scale(.89)}to{opacity:1;transform:scale(1) translateZ(0)}}@keyframes bounceOut{to{opacity:0;transform:scale(.3) translateZ(0)}80%{opacity:.9;transform:scale(1.1)}50%{opacity:1;transform:scale(.89)}0%{opacity:1;transform:scale(1) translateZ(0)}}