.back_to_top{width:35px;height:35px;background-color:rgba(0,0,0,0.65);color:#FFF;cursor:pointer;text-align:center;position:fixed;right:25px;bottom:35px;padding-top:6px;display:none;z-index:999;transition-duration:.2s;transition-property:background-color}.back_to_top:hover{background-color:#c7081b}.print_friendly{display:none}