<style>
body {
  margin: 0px;
}
div {
  font-size: 20px;
  font-family: Ahem;
  width: 20px;
  word-break: break-word;
  color: transparent;
}
span {
  border-right: solid green 40px;
}
</style>
<div><span><span>X</span>X</span></div>
