#gallery {
    padding-top: 80px;
  }
  @media screen and (min-width: 991px) {
    #gallery {
      padding: 60px 30px 0 30px;
    }
  }
  
  .img-wrapper {
    position: relative;
    margin-top: 15px;
  }
  .img-wrapper img {
    width: 100%;
  }
  
  .img-overlay {
    background: rgba(0, 0, 0, 0.7);
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
  }
  .img-overlay i {
    color: #fff;
    font-size: 3em;
  }
  
  #overlay {
    background: rgba(0, 0, 0, 0.7);
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
  }
  #overlay img {
    margin: 0;
    width: 80%;
    height: auto;
    -o-object-fit: contain;
       object-fit: contain;
    padding: 5%;
  }
  @media screen and (min-width: 768px) {
    #overlay img {
      width: 60%;
    }
  }
  @media screen and (min-width: 1200px) {
    #overlay img {
      width: 50%;
    }
  }
  
  #nextButton {
    color: #fff;
    font-size: 2em;
    transition: opacity 0.8s;
  }
  #nextButton:hover {
    opacity: 0.7;
  }
  @media screen and (min-width: 768px) {
    #nextButton {
      font-size: 3em;
    }
  }
  
  #prevButton {
    color: #fff;
    font-size: 2em;
    transition: opacity 0.8s;
  }
  #prevButton:hover {
    opacity: 0.7;
  }
  @media screen and (min-width: 768px) {
    #prevButton {
      font-size: 3em;
    }
  }
  
  #exitButton {
    color: #fff;
    font-size: 2em;
    transition: opacity 0.8s;
    position: absolute;
    top: 50px;
    right: 50px;
  }
  #exitButton:hover {
    opacity: 0.7;
  }
  @media screen and (min-width: 768px) {
    #exitButton {
      font-size: 3em;
    }
  }