CSS border-top-color border-top-color : color : See the Pen <a href="http://codepen.io/w3tr/pen/qNYkqQ/">border-top-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/vKjGyq/">border-top-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/grzAgb/">border-top-color 3</a> by W3TR (<a href="http://codepen.io/w3tr">@w3tr</a>) on <a href="http://codepen.io">CodePen</a>.<br />