<style type="text/css">
#trapezoid {
 height: 0;
 width: 120px;
 border-bottom: 80px solid #05ed08;
 border-left: 45px solid transparent;
 border-right: 45px solid transparent;
 padding: 0 8px 0 0;
}
</style>

<div id="trapezoid"><br/>Curs CSS:<br/>
www.discant.ro</div>

<style type="text/css">
#rtrapezoid {
 height: 0;
 width: 120px;
 border-bottom: 100px solid #05ed08;
 border-left: 15px solid #05ed08;
 border-right: 45px solid transparent;
 padding-right: 20px;
}
</style>

<div id="rtrapezoid"><br/>Curs CSS:<br/>
www.discant.ro</div>