.icon-btn {
  border-radius: 50%;
  box-sizing: border-box;
  display: inline-block;
  height: 30px;
  line-height: 30px;
  outline: none;
  text-align: center;
  text-decoration: none;
  transition: all ease-out .2s;
  vertical-align: middle;
  width: 30px;

  &:hover {
    text-decoration: none;
    transform: scale(1.05);
  }

  > span {
    font-weight: lighter;
  }
}

.icon-btn-xs {
  @include icon-button-size(15px);
}

.icon-btn-sm {
  @include icon-button-size(22.5px);
}

.icon-btn-lg {
  @include icon-button-size(37.5px);
}

.icon-btn-xl {
  @include icon-button-size(45px);
}