#canvas-preview {
  display: block;
  width: 100%;
  height: auto;
}

#video-preview {
  display: none;
  width: 100%;
  height: auto;
}

.two-columns {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
}

.column {
  flex-shrink: 0;
  flex-grow: 1;
  flex-basis: 50%;
}
.column-left {
  flex-basis: 70%;
  max-width: 800px;
}
.column-right {
  flex-basis: 30%;
  padding: 0 1rem 0 1rem;
}