.responsive-iframe-container {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 35px;
    height: 0;
    overflow: hidden;
}

.responsive-iframe-container iframe {
    position: absolute;
    top:0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}
.responsive-iframe-container--sidebar {
  min-height: 700px;
  margin-bottom: 2rem;
}
.responsive-iframe-container--sidebar iframe {
  border: 1px solid #ccc;
}
.thickbox__logo .wrap {
  position: relative;
}
.thickbox__logo {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 100px;
  height: auto;
}
#canvas-url {
  width: 100%;
  margin-top: 1rem;
  padding: 0.5rem;
}
#canvas-error {
  display: none;
  color: red;
}