#backtotop {
  -webkit-transition: border-color 0.25s ease-out;
  -moz-transition: border-color 0.25s ease-out;
  -ms-transition: border-color 0.25s ease-out;
  -o-transition: border-color 0.25s ease-out;
  transition: border-color 0.25s ease-out;
  border: 2px solid #BBBBBB;
  border-radius: 0;
  background: #FFFFFF;
  width: 40px !important;
  height: 40px !important;
  font-size: 0;
  right: 16px;
  bottom: 16px;
}

#backtotop:before {
  content: '';
  background-image: url(../../images/chevron-left.svg);
  background-repeat: no-repeat;
  background-size: cover;
  width: 25px;
  height: 25px;
  transform: rotate(90deg);
  display: block;
  margin: 0 auto;
  position: absolute;
  top: 5px;
  left: 0;
  right: 0;
  bottom: 0;
}

#backtotop:hover, #backtotop:focus {
  opacity: 1;
  background: #FFFFFF;
  border-color: #daa300;
}