img.big-circle {
  max-width: 400px;
  width: 100%;
  height: auto;
}

figure.image.face {
  max-width: 100px;
  margin-right: auto;
  margin-left: auto;
}

div.iframeWrapper {
  position: relative;
  width: 100%;
  padding-top: 140%;
}

div.iframeWrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}