.isDesktopItem {
  display: block;
}

.isMobileItem {
  display: none;
}

/* Tablet - Portrait (768px - 991px) */
@media screen and (min-width: 768px) and (max-width: 1024px) {
  .video-banner {
    margin: 0 auto !important
  }

  .impact-card p {
    font-size: 13px
  }
}

@media screen and (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
  .isDesktopItem {
    display: none !important;
  }

  .isMobileItem {
    display: block !important;
  }


  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 26px;
  }

  h3 {
    font-size: 22px;
  }

  h4 {
    font-size: 20px;
  }

  h5 {
    font-size: 17px;
  }

  h6 {
    font-size: 15px;
  }

  .video-banner {
    margin: 0 auto !important
  }

  .impact-card {
    min-height: 220px;
  }

  .mobile-nav .sidenav ul li a {
    font-size: 23px;
  }

  .collaboration-section {
    margin-bottom: 0;
  }

  .footer-content {
    margin: 0 auto;
    width: 400px;
    height: 400px;
  }
}

/* Tablet - Landscape (992px - 1199px) */
@media screen and (min-width: 820px) and (max-width: 1199px) and (orientation: landscape) {
  .collaboration-section {
    margin-bottom: 0;
  }

  .footer .row.isDesktopItem {
    display: flex
  }

  .footer-content {
    margin: 0 auto;
  }

  .footer-content>div p {
    font-size: 14px;
  }

  .footer .btn {
    font-size: 13px;
  }
}


/* small screens */
@media screen and (max-width: 1099px) and (min-width: 320px) {
  .isDesktopItem {
    display: none !important;
  }

  .isMobileItem {
    display: block !important;
  }

  .corp-dev-intro>div {
    display: block;
    min-height: 500px;
    background: #1894cf !important;
  }

  .corp-dev-intro-bottom {
    display: block;
  }


  .impact-section::before,
  .video-banner::before,
  .inter-header::before,
  .inter-header::after,
  .inter-collaboration-section::before,
  .inter-collaboration-section::after,
  .event-highlight-page::before,
  .event-highlight-page::after,
  .event-highlight-page .footer::before .message-page #site-wrapper::before,
  .message-page #site-wrapper::after {
    display: none;
  }

  .sub-hero {
    padding-top: 15px;
    background: #FFFFFF;
  }

  .sub-hero .sub-hero-desc * {
    color: #000000;
    text-align: center;
  }
}


@media screen and (min-width: 320px) and (max-width: 766px) {
  .sub-hero {
    padding-top: 15px;
    background: #FFFFFF;
  }

  .sub-hero .sub-hero-desc * {
    color: #000000;
    text-align: center;
  }

  .event-month-content p {
    font-size: 17px;
  }

  .org-dev-below-header {
    min-height: 160px;
  }

  #carouselExampleControls .carousel-item>div>p {
    font-size: 4vw;
  }

  .corp-dev-stats .item {
    min-height: 400px;
  }

  .corp-dev-stats .item h4 {
    font-size: 65px;
  }

  .corp-dev-stats-2 .item h4 {
    font-size: 55px !important;
  }

  .corp-dev-stats .item p,
  .corp-dev-stats-2 .item p {
    font-size: 22px;
  }
}

@media screen and (width <=980px) and (height <=450px) and (orientation: landscape) {

  .impact-section::before,
  .video-banner::before,
  .inter-header::before,
  .inter-header::after,
  .inter-collaboration-section::before,
  .inter-collaboration-section::after,
  .event-highlight-page::before,
  .event-highlight-page::after,
  .event-highlight-page .footer::before,
  .message-page section.chairman-message div.row::before,
  .message-page section.ceo-message div.row::before,
  .message-page section.ceo-message div.row::after {
    display: none !important;
  }
}


@media screen and (width <=980px) and (orientation: portrait) {

  .impact-section::before,
  .video-banner::before,
  .inter-header::before,
  .inter-header::after,
  .inter-collaboration-section::before,
  .inter-collaboration-section::after,
  .event-highlight-page::before,
  .event-highlight-page::after,
  .event-highlight-page .footer::before,
  .message-page section.chairman-message div.row::before,
  .message-page section.ceo-message div.row::before,
  .message-page section.ceo-message div.row::after {
    display: none !important;
  }
}

@media screen and (max-width: 767px) {
  .sub-hero {
    background: #FFFFFF;
  }

  .sub-hero .sub-hero-desc * {
    color: #000000;
    text-align: center;
  }
}

@media screen and (min-width: 768px) and (max-width: 1072px) {
  .board .board-item {
    min-height: 250px;
  }
}

/* Mobile - Portrait (Up to 480px) */
@media screen and (max-width: 480px) and (orientation: portrait) {
  .isDesktopItem {
    display: none !important;
  }

  .isMobileItem {
    display: block !important;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }

  h3 {
    font-size: 20px;
  }

  h4 {
    font-size: 18px;
  }

  h5 {
    font-size: 20px;
  }

  h6 {
    font-size: 14px;
  }


  .video-banner {
    margin: 0 !important;
    padding: 0 !important;
  }

  .impact-section h1 br {
    display: none;
  }

  .section-4 h4 br {
    display: none;
  }

  .collaborators {
    text-align: center;
  }

  .collaborators>img {
    width: 100%;
  }

  .inter-collaboration-section .card-container .row>div .collaborators {
    min-height: auto;
  }



  /* .corp-dev-intro > div {
    background-position: 99% bottom;
    min-height: 810px;
    
    display: block;
  } */

  .corp-dev-intro>div p {
    font-size: 18px;
    line-height: 1.3;
  }


  .event-month-content {
    min-height: auto;
  }

  .footer-logo img {
    max-width: 180px;
  }

  .footer-content {
    margin: 0 auto;
  }

  .footer .btn {
    font-size: 12px;
  }

  .social-icons a {
    width: 45px;
    height: 45px;
    line-height: 45px;
    font-size: 25px;
  }
}


/* Mobile - Landscape (481px - 767px) */
@media screen and (min-width: 390px) and (max-width: 819px) and (orientation: landscape) {
  .isDesktopItem {
    display: none !important;
  }

  .isMobileItem {
    display: block !important;
  }

  .corp-dev-intro>div {
    background: #1894cf !important;
  }

  .impact-section::before,
  .video-banner::before,
  .inter-header::before,
  .inter-header::after,
  .inter-collaboration-section::before,
  .inter-collaboration-section::after,
  .event-highlight-page::before,
  .event-highlight-page::after,
  .event-highlight-page .footer::before,
  .message-page #site-wrapper::before,
  .message-page #site-wrapper::after {
    display: none !important;
  }

  .collaborators {
    text-align: center;
  }

  .collaboration-section {
    margin-bottom: 0;
  }

  .footer-logo img {
    max-width: 180px;
  }

  .footer .btn {
    font-size: 13px;
  }

  .footer-content {
    margin: 0 auto;
  }
}