styles.scss

.app-links {
  margin-left: 3rem;
  gap: 1.2rem;

  .mobile-app {
    position: relative;

    // no support for gap
    margin-right: 1.2rem;

    @supports (gap: 0) {
      margin-right: 0;
    }

    &:after {
      content: "";
      left: -3rem;
      right: -3rem;
      height: 5rem;
      top: 100%;
      position: absolute;
      display: none;
    }

    &:hover {
      &:after {
        display: block;
      }

      .hover-menu-app {
        visibility: visible;
        opacity: 1;

        a {
          text-color: rgba(#0078ad, 0.11);
        }
      }
    }
  }
}