Page Widget How to - Leave blank border in the corners

Question

We would like to know how to leave blank border in the corners.

Answer


<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
div {<!--from   www. j ava2 s.c om-->
  width: 20px;
  height: 20px;
  padding: 6px;
  position: relative;
}

div:before, div:after {
  content: '';
  border: 6px solid transparent;
  position: absolute;
}

div:before {
  left: 2px;
  right: 2px;
  top: 0;
  bottom: 0;
  border-top-color: black;
  border-bottom-color: black;
}

div:after {
  top: 2px;
  bottom: 2px;
  left: 0;
  right: 0;
  border-right-color: black;
  border-left-color: black;
}
</style>
</head>
<body>
  <div></div>
</body>
</html>

The code above is rendered as follows: