@media only screen and (max-width: 959px) {
  .hamburger {
    display: block;
  }

  .hamburger span {
    transition: all 0.3s ease;
    font-size: 20px;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 100%;
  }
  .main_menu li,
  .header_button_container {
    display: none;
  }
  .hero__section,
  .hero__section div:not(.hero__section_header),
  .hero__slideshow_item img {
    height: 500px;
  }
  .aboutus-container {
    padding-right: 0;
  }
  .aboutus-imgcontainer .floating-img {
    display: none;
  }
  .ourpresident__container {
    padding-top: 44px;
  }
  .invitation__header h2,
  .ourpurpose-header-content h2,
  .aboutus-container h2,
  .ourpresident__container h3 {
    font-size: 32px;
    line-height: 1.5;
  }
  .invitation__header {
    margin-bottom: 42px;
  }
  .invitation__header p {
    width: 90%;
    font-size: 14px;
    margin-top: 18px;
  }
  .aboutus-container p,
  .ourpresident__container ul li p {
    font-size: 13px;
  }
  .sncc-section {
    padding: 45px 0;
  }
  .ourpresident__presimg img,
  .aboutus-imgcontainer > img {
    height: 400px;
  }
  .ourpurpose-navcontainer.top {
    display: none;
  }
  .ourpurpose-navcontainer.bottom {
    display: flex;
    margin-top: 24px;
  }
  .ourpurpose-header {
    justify-content: center;
    text-align: center;
    align-items: center;
  }
  .ourpurpose-item-container {
    max-height: 380px;
  }
  .footer-siteinfo h4 {
    margin: 18px 0;
    font-size: 16px;
  }
  .site-footer > img {
    bottom: 0;
    top: auto;
    left: 0;
    right: auto;
  }
  .footer-siteinfo ul li {
    font-size: 14px;
  }
  .footer-siteinfo ul.links li:not(:last-child) {
    margin-bottom: 10px;
  }
  .bottom-footer {
    flex-direction: column;
    text-align: center;
  }

  .single-team__content h1 {
    padding-top: 18px;
  }
  .invitation__content > div > div:not(:last-child) .invitation__item {
    padding-right: 0;
    margin-right: 0;
    border-right: none;
    margin-bottom: 28px;
  }
}

@media only screen and (max-width: 640px) {
  .hamburger span {
    font-size: 17px;
    padding: 13px;
    color: #fff;
    background-color: var(--primary);
  }
  .gallery__section .gallery__content img {
    height: 300px;
  }
}