CodePen

HTML

            
                <div>my-domain.com</div>
            
          
!

CSS

            
              div {
  margin: 20px auto;
  width: 200px;
  position: relative;
}

div:before {
  content: "";
  width: 3.2em;
  display: block;
  background: #ccc;
  height: 1em;
  position: absolute;
  z-index: -10;
  left: 1.5em;
}
            
          
!
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? ?
Must be a valid URL.
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JS

            
              
            
          
!
Must be a valid URL.
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