.go-top {
  &__button {
    position: fixed;
    left: auto;
    right: 15px;
    bottom: 40px;
    z-index: 0;
    display: block;
    height: 60px;
    width: 60px;
    border-radius: 60px;
    background: url(../img/icons/prev.svg) center no-repeat;
    background-color: $blue;
    box-shadow: 0 0 10px rgba($color: $black, $alpha: 0.2);
    transform: rotate(90deg);
    opacity: 0;
    transition: opacity ease-in-out 0.15s, background-color ease-in-out 0.1s;
    cursor: pointer;

    @include laptop {
      display: none;
    }

    &:active {
      background-color: $darkblue;
    }

    &.active {
      z-index: 100;
      opacity: 1;
    }
  }
}