.iframe-wrapper {
  line-height: 0;
}

/** @todo: does this need to be backported to Unity theme? if not, does it go in _unity_profile.scss instead? */
button.iframeFullscreen,
a.iframeFullscreen {
    background-color: transparent;
    border: none;
    font-size: 1.5rem;
    line-height: 2.25rem;
}