.wallsio-iframe-wrapper {
  background: #ddd;
  position: relative;

  margin-bottom: 1.5em;
}

.wallsio-iframe-wrapper .mce-preview-object {
  margin-left: 0;
  margin-right: 0;
}

.wallsio-iframe-wrapper:after {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;

  transition: background 0.25s ease-in-out;
}

.wallsio-iframe-wrapper[data-mce-selected="1"]:after {
  background: rgba(255,255,255, 0.5);
}

.wallsio-iframe-wrapper iframe {
  margin-bottom: 0;
}