:root {
  --header-height: 80px;
}
@media (max-width: 1199px) {
  :root {
    --header-height: 60px;
  }
}

.tcl-button-to-up {
  position: fixed;
  right: 35px;
  bottom: 35px;
  z-index: 100;
  border: 1px solid #0071f2;
  background: #0071f2;
  width: 50px;
  height: 50px;
  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: 0.3s;
  transition: 0.3s;
}
.tcl-button-to-up.active {
  opacity: 1;
  visibility: visible;
}
.tcl-button-to-up__image {
  width: 60%;
}