@mixin heading-style {
  margin: 0;
  padding: 0;
  margin-bottom: 16px + 8px;
  padding-bottom: 16px + 8px;
  margin-top: 64px;
  position: relative;

  // Line
  &::after {
    content: '';
    display: block;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, $dark-line-color 50%, transparent);
  }

  @media (max-width: 768px) {
    margin-bottom: 8px;
    margin-top: 32px;
    padding-bottom: 8px;
  }

  @media (max-width: 480px) {
    margin-bottom: 8px;
    margin-top: 32px;
    padding-bottom: 8px;
  }
}