.reveal {
  .centered {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .shadowed {
    -webkit-box-shadow: 6px 7px 17px -5px rgba(0, 0, 0, 0.75);
    -moz-box-shadow: 6px 7px 17px -5px rgba(0, 0, 0, 0.75);
    box-shadow: 6px 7px 17px -5px rgba(0, 0, 0, 0.75);
  }

  code {
    padding: 20px !important;
    max-height: 1500px !important;
  }

  code span.fragment.fade-out.visible {
    display: none;
  }

  section {
    img {
      border: none;
    }
  }
  
  img.small-logo {
    width: 50px;
    padding-right: 5px;
    margin: 0;
    vertical-align: middle;
  }

  .block {
    display: inline-block;
    vertical-align: middle;
  }

  img.block {
    margin-right: -5px;
  }
}
.reveal {
  .centered {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .shadowed {
    -webkit-box-shadow: 6px 7px 17px -5px rgba(0, 0, 0, 0.75);
    -moz-box-shadow: 6px 7px 17px -5px rgba(0, 0, 0, 0.75);
    box-shadow: 6px 7px 17px -5px rgba(0, 0, 0, 0.75);
  }

  code {
    padding: 20px !important;
    max-height: 1500px !important;
  }

  code span.fragment.fade-out.visible {
    display: none;
  }

  section {
    img {
      border: none;
      background: none;
      box-shadow: none;
      margin: 0;
    }
  }

  img.small-logo {
    width: 50px;
    padding-right: 5px;
    margin: 0;
    vertical-align: middle;
  }

  .block {
    display: inline-block;
    vertical-align: middle;
  }

  img.block {
    margin-right: -5px;
  }
}
Remove background for images by default
Remove background for images by default
