<style type="text/css">
#rhombus {
 position: relative;
 top: -60px;
 width: 0;
 height: 0;
 border: 60px solid transparent;
 border-bottom: 75px solid #05ed08;
}

/* Zona de jos */
#rhombus:after {
 position: absolute;
 left: -60px;
 top: 75px;
 width: 0;
 height: 0;
 border: 60px solid transparent;
 border-top: 75px solid #05ed08;
 content: '';
}

/* Continut in romb */
#rhombus div {
 position: relative;
 margin: 63px auto 0 -41px;
 font-weight: bold;
 z-index: 888;
}
</style>

<div id="rhombus"><div>www.discant.ro</div></div>