Incomplete borders around div

Question

I am looking for a way to create an incomplete square with borders with some text and a background with pure css. Here is what I am trying to achieve:

<

Answer 1

This approach allows you to:

• add any content and the borders will adapt around it regardless of height or width of the content
• support transparent background and can be displayed over an image or non plain colors
• doesn't add any unsemantic elements

It relies on 2 absolutely positioned pseudo elements and one div. The spacing between the content and the borders is controlled by the padding on the div :

div{
  position:relative;
  display:inline-block;
  padding:50px 100px;
  border-left:1px solid #000;
  text-align:center;
}
div:before, div:after{
  content:'';
  position:absolute;
  right:50%; left:0;
  height:50px;
  border-right:1px solid #000;
}
div:before{
  top:0;
  border-top:1px solid #000;
}
div:after{
  bottom:0;
  border-bottom:1px solid #000;
}
body{background:url('http://i.imgur.com/3IXm5qm.jpg');background-size:cover;}

  
This is a very long title on
 2 lines
  Button
  
Some text