Visual Inner border for Columns

by Ben Clayton

HTML

<div>

</div>

<div>

</div>

CSS

body {
  font-size: 0;
  padding: 0;
  line-height: 0;
}

div {
  position: relative;
  display: inline-block;
  width: 50%;
  height: 200px;
}

div::before {
  content: 'X';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 1px dotted gray;
}