<style>
  #parallelogram {
   height: 0; 
   width: 180px;
   border-bottom: 80px solid #037CA9;
   border-right: 40px solid transparent;
}

#parallelogram span{
  font-size:25px;
  width:100%;
  display:block;
  height:80px;
  line-height:80px;
  color:white;
  text-align:center;
}
</style>
<div id="parallelogram"><span>hallo</span></div>