<!DOCTYPE html> <!-- webkit-test-runner [ LayoutFormattingContextEnabled=true LayoutFormattingContextIntegrationEnabled=false ] -->
<style>
div {
  background-color: green;
  font-family: Ahem;
  font-size: 20px;
  word-wrap: break-word;
  width: 300px;
}

span {
  border-right: 50px solid red;
}
</style>
<div><span>text_content_fits</span></div>