@media only screen and (max-width: 769px) {
  p {
    font-size: 14px;
  }
  h1, .h1 {
    font-size: 24px;
  }
  h2, .h2 {
    font-size: 20px;
  }
  h3, .h3 {
    font-size: 18px;
  }
  h4, .h4 {
    font-size: 16px;
  }
  h5, .h5 {
    font-size: 16px;
  }
  header .top-header {
    display: none;
  }
  header .header-wrap .row {
    justify-content: space-between;
    padding: 10px;
    align-items: center;
  }
  header .header-wrap .row .logo {
    width: 200px;
    height: 50px;
    padding: 5px;
    flex: 1;
  }
  header .header-wrap .row .menu-header-wrap {
    width: auto;
    position: absolute;
    right: 0;
    z-index: 111;
  }
  header .header-wrap .row .menu-header-wrap .menu-menu-chinh-container .menu-header li a {
    padding: 6px;
  }
  header .header-wrap .row .mobile-menu-button {
    color: var(--primary_color);
  }
  header .header-wrap .row .mobile-menu-button i {
    font-size: 20px;
  }
  header .header-wrap .row .social-list {
    display: none;
  }
  section .title {
    width: 100%;
    font-size: 20px;
    padding: 10px;
  }
  section .title-with-border {
    width: 100%;
    font-size: 20px;
    padding: 10px;
  }
  .title-quang-optic {
    font-size: 26px;
    width: 100%;
    line-height: 1.2;
  }
  .section-slide .banner .slide-layout-1, .section-slide .banner .slide-layout-2, .section-slide .banner .slide-layout-3 {
    display: none;
  }
  .section-slide .banner.slick-active .slide-layout-1, .section-slide .banner.slick-active .slide-layout-2, .section-slide .banner.slick-active .slide-layout-3 {
    display: block;
  }
  .section-slide .slide-layout-1 {
    height: 100%;
  }
  .section-slide .slide-layout-1 .row-wrap {
    flex-direction: column;
  }
  .section-slide .slide-layout-1 .row-wrap .info .title {
    font-size: 18px;
  }
  .section-slide .slide-layout-1 .row-wrap .img-wrap {
    width: 100%;
  }
  .section-slide .slide-layout-2 {
    height: 100%;
  }
  .section-slide .slide-layout-2 .title {
    padding: 10px 0;
    font-size: 16px;
  }
  .section-slide .slide-layout-2 .info-2 .info-item .data {
    font-size: 0.5rem;
  }
  .section-slide .slide-layout-3 {
    height: 100%;
  }
  .section-slide .slide-layout-3 .slide-wrapper .info-wrap {
    flex-direction: column;
  }
  .section-slide .slide-layout-3 .slide-wrapper .info-wrap .img-wrap {
    position: unset;
    margin: 30px 0;
  }
  footer ul {
    flex-direction: column;
  }
  footer ul li {
    margin-bottom: 10px;
  }
  footer .footer-wrap > .row {
    flex-direction: column;
  }
  footer .footer-wrap > .row .logo-footer {
    display: block;
    margin: auto;
  }
  footer .info-footer {
    flex-direction: column;
    padding: 15px;
  }
  .ctf7 .ctf7-wrapper {
    padding: 15px;
  }
  .header_slide {
    height: auto;
  }
  .header_slide .left_arrow {
    left: 5px;
    font-size: 25px;
  }
  .header_slide .right_arrow {
    right: 5px;
    font-size: 25px;
  }
  .header_slide .content {
    padding: 15px;
  }
  .header_slide .content .title, .header_slide .content .desc {
    padding: 0;
    max-width: 100%;
  }
  .share-social .box-ic ul {
    flex-direction: column;
  }
  .share-social .box-ic ul li {
    margin-bottom: 10px;
  }
  @keyframes zoomBg {
    from {
      background-size: 140%;
    }
    to {
      background-size: 160%;
    }
  }
  .logo_partner .brand-slider {
    flex-direction: column;
  }
  .logo_partner .brand-slider .img-wrap {
    width: 100%;
  }
  .register {
    background-image: unset !important;
    margin: unset;
  }
  .register .ctf7 {
    margin: unset;
    margin-bottom: 30px;
  }
  .testimonial .list-tes {
    width: 100%;
  }
  .header_amd .header-amd-wrapper {
    width: 100%;
  }
  .header_amd .header-amd-wrapper .img-wrap {
    width: auto;
  }
}