title: Color border in corners seperatly
body: <p>Is there any way to color a <em>border corner</em> in CSS?</p>
  
  <p>I.e. : <code>border-top-left-corner-color: red</code></p>
  
  <p>If it can't be done in pure CSS, can it be done with some JS/jQuery trickery?</p>