.tcl-button-to-up {
  position: fixed;
  right: 30px;
  bottom: 30px;
  z-index: 100;
  border: 2px solid #fff;
  background: #023c7a;
  width: 44px;
  height: 44px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  cursor: pointer;
  visibility: hidden;
  opacity: 0;
  -webkit-transition: visibility 0.3s, opacity 0.3s;
  transition: visibility 0.3s, opacity 0.3s;
  border-radius: 50%;
}
.tcl-button-to-up img {
  width: 12px !important;
}
.tcl-button-to-up.active {
  opacity: 1 !important;
  visibility: visible !important;
}