@media only screen and (max-width: 1580px) {
  .popup-content {
    overflow: scroll;
  }

  .description {
    padding: 0 60px;
  }

  .technical-data {
    padding: 10px 50px 50px 60px;
    margin-left: 0;
  }

  .item span {
    padding-top: 20%;
  }
}

@media only screen and (max-width: 1350px) {
  .main-nav {
    margin-right: 10px;
  }

  .description {
    padding: 0 100px;
  }

  .technical-data {
    padding: 10px 0 0 60px;
    margin-left: 10%;
  }

  .item span {
    font-size: 3rem;
  }
}

/* Big tablet to 1200px (widths smaller taht the 1140px row) */
@media only screen and (max-width: 1200px) {
  .hero-text-box {
    width: 50%;
    padding: 0 2%;
  }

  .item span {
    font-size: 2.5rem;
  }

  .row {
    padding: 0 2%;
    width: 100%;
  }

  .pop-img {
    margin-top: 1px;
    width: 250px;
    height: auto;
  }

  .main-nav {
    margin-top: 50px;
  }

  .main-nav li {
    margin-right: 15px;
  }

  .logo-main {
    padding: 15px 0 0 15px;
  }

  .col-product {
    width: 300px;
    height: 400px;
  }

  .popup-content {
    overflow: scroll;
  }

  .technical-data {
    padding: 10px 0 0 60px;
    margin-left: 0;
  }

  .custom-gallery {
    margin-top: 7%;
  }

  .custom-gallery img {
    width: 200px;
    height: auto;
  }

  .section-distributors {
    height: 400px;
  }
}

@media only screen and (max-width: 1051px) {
  .diffusers,
  .steel {
    width: 45em;
    height: 14em;
  }
  .diffusers {
    background-image: url(../img/diffusers-tablet.jpg);
  }
  .steel {
    background-image: url(../img/ss-steel-tablet.jpg);
  }

  .diffusers__heading,
  .diffusers__steel {
    font-size: 2.7rem;
  }

  .first-video-apx,
  .second-video-apx,
  .first-video-opx,
  .second-video-opx {
    margin: 0;
  }

  .airprax-videos,
  .oxyprax-videos {
    display: grid;
    justify-content: center;
    margin: 0;
  }
}

@media only screen and (max-width: 1023px) {
  body {
    font-size: 16px;
  }

  /* Main navi */
  .main-nav {
    margin-top: 20px;
    margin-right: 15px;
  }

  .main-nav li {
    margin-right: 10px;
  }

  .social-icons li {
    display: none;
  }

  .logo-main {
    float: left;
    width: 10%;
    height: auto;
    padding: 10px 0 0 10px;
  }

  /* Sticky navi */

  .sticky .main-nav {
    margin-top: 20px;
    font-size: 100%;
  }

  .sticky .logo-main {
    width: 8%;
  }

  .sticky .social-icons li {
    display: none;
  }

  .about-cols div {
    padding: 10px;
  }

  /* PRODUCTS */

  .microbubbles-content p {
    padding: 33px 60px;
    font-weight: 300;
  }

  .world-map {
    display: none;
  }

  .distributors-logos:first-child {
    margin-left: 100px;
  }

  .distributors-logos {
    position: relative;
  }

  .distributors-logos div {
    margin: 20px;
    width: 40%;
  }
}

/* Small phones to small tablets: from 481px to 767px */
@media only screen and (max-width: 767px) {
  section {
    padding: 0 0;
  }

  .section-big-pictures {
    height: 50vh;
    padding-bottom: 0px;
    padding: 0;
    margin-top: 40px;
  }

  .item span {
    font-size: 1.5rem;
  }

  .main-nav {
    display: none;
  }

  .mobile-nav-icon {
    display: inline-block;
  }

  .main-nav {
    float: left;
    height: 50vh;
    overflow-y: scroll;
  }

  .sticky .main-nav {
    float: left;
    margin-left: 20px;
  }

  .main-nav li {
    display: block;
    padding: 0.5em 0;
  }

  .main-nav li a:link,
  .main-nav li a:visited {
    display: block;
    border: 0;
    padding: 3px 0;
    font-size: 90%;
  }

  .logo-main {
    float: left;
    width: 13%;
    height: auto;
    padding: 0;
    margin: 20px 20px 0 0;
  }

  .sticky .logo-main {
    width: 60px;
    margin: 5px;
  }

  .mob-icon {
    display: block;
  }

  .navbar-toggler {
    display: block;
  }

  /* PRODUCTS */
  .diffusers,
  .steel {
    width: 29em;
  }

  .diffusers__heading,
  .diffusers__steel {
    text-align: center;
  }

  .section-products {
    height: auto;
  }

  .microbubbles-content p {
    padding: 33px 20px;
    font-weight: 300;
  }

  iframe {
    width: 450px;
    height: 255px;
  }

  .contact-form {
    width: 100%;
    margin: 20px auto;
  }

  label {
    margin-top: 15px;
  }

  .distributors-logos {
    position: relative;
  }

  .distributors-logos div {
    margin: 10px;
    width: 40%;
  }

  .cookies {
    height: 45px;
  }
}

/* Small phones: from 0 to 480px */
@media only screen and (max-width: 480px) {
  section {
    padding: 25px 0;
  }

  .section-big-pictures {
    height: auto;
  }

  /* Products */
  .diffusers,
  .steel {
    width: 18em;
  }
  .diffusers {
    background-image: url(../img/diffusers-mobile.jpg);
  }
  .steel {
    background-image: url(../img/ss-steel-mobile.jpg);
  }

  .diffusers__heading,
  .diffusers__steel {
    font-size: 1.7rem;
  }
  .item span {
    font-size: 1rem;
  }

  .contact-form {
    width: 100%;
  }

  .distributors-logos {
    display: grid;
    justify-content: center;
    margin-left: 0 !important;
  }

  .distributors-logos div {
    width: 100%;
    margin-top: 20px;
    padding: 0;
    text-align: center;
  }

  iframe {
    width: 250px;
    height: 150px;
  }

  .description {
    padding: 10px;
  }

  .technical-data {
    padding-left: 0;
    margin-left: 0;
  }

  .technical-data span {
    margin-right: 15%;
    float: right;
  }

  .cookies {
    height: 65px;
  }
}