.bTTbutton{display:inline-block;background-color:#003cff;width:50px;height:50px;text-align:center;border-radius:4px;position:fixed;bottom:30px;right:30px;transition:background-color .3s,opacity .5s,visibility .5s;opacity:0;visibility:hidden;z-index:1000}.bTTbutton::after{content:"\f077";font-family:FontAwesome;font-weight:normal;font-style:normal;font-size:2em;line-height:50px;color:#fff}.bTTbutton:hover{cursor:pointer;background-color:#333}.bTTbutton:active{background-color:#555}.bTTbutton.show{opacity:1;visibility:visible}@media(min-width:500px){.bTTbutton{margin:30px}}