CodePen Embed - Faux border spacing

<div></div>
<div></div>

div {
  height: 150px;
  width: 150px;
}
div:nth-child(1) {
  background: rgb(255 105 0);
}
div:nth-child(2) {
  background: rgb(207 46 46);
  border-block-start: 50px solid rgb(255 255 255);
}

This Pen is owned by Geoff Graham on CodePen.

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