:root{--gsk-orange:#f36633;--sans-serif-bold:"GSK bold",arial,helvetica,sans-serif;--sans-serif-regular:"GSK regular",arial,helvetica,sans-serif}.back-to-top{background-color:var(--gsk-orange);border-radius:100%;height:100px;position:fixed;transform:scale(1);transition:all .25s;width:100px;z-index:11}.navigation-open .back-to-top{display:none}@media (min-width:81.25em){.navigation-open .back-to-top{display:block}}@media (max-width:47.99em){.back-to-top{bottom:-5px;right:-5px;transform:scale(.5)}.back-to-top:focus,.back-to-top:hover{transform:scale(.6)}}@media (min-width:48em){.back-to-top{bottom:20px;right:20px}.back-to-top:focus,.back-to-top:hover{transform:scale(1.05)}}.back-to-top__icon{left:50%;margin-left:-20px;margin-top:-12px;position:absolute;top:50%;width:auto;z-index:2}.back-to-top__svg{height:98px;transform:rotate(270deg);width:98px}.back-to-top__circle{stroke:var(--gsk-orange);stroke-dashoffset:0;stroke-width:1.5px;transition:stroke-dashoffset 1s linear}.back-to-top__circle-progress{display:none;stroke:#fff;stroke-width:1.5px}