#iframeOverlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  background: rgba(255,255,255,0);
}

#iframeOverlay .iframeOverlay-message {
  font-size: 14px;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 30%;
  box-sizing: border-box;
  z-index: 10;
  font-family: Arial, sans-serif;
  color: #555;
  background: rgba(255,255,255,0.2);
}

.fullscreen-btn {
  font-size: small;
  position: absolute;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  height: 35px;
  width: 35px;
  cursor: pointer;
  background-color: rgb(247, 247, 247);
  color: #88909d;
  border-radius: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 15px;
  box-shadow: 0px 2px 5px rgba(0,0,0,0.1);
}