CSS border-left-color border-left-color : color : See the Pen <a href="http://codepen.io/w3tr/pen/jAxWdq/">border-left-color</a> by W3TR (<a href="http://codepen.io/w3tr">@w3tr</a>) on <a href="http://codepen.io">CodePen</a>.<br /> See the Pen <a href="http://codepen.io/w3tr/pen/yJjZkV/">border-left-color2</a> by W3TR (<a href="http://codepen.io/w3tr">@w3tr</a>) on <a href="http://codepen.io">CodePen</a>.<br /> transparent : See the Pen <a href="http://codepen.io/w3tr/pen/XKqXOa/">border-left-color3</a> by W3TR (<a href="http://codepen.io/w3tr">@w3tr</a>) on <a href="http://codepen.io">CodePen</a>.<br />