<div>		
  <div class="ex1"></div>
  <div class="ex2"><a href="#">مثال</a></div>
</div>

.ex1 {
    background-color: #4b8b8a;
    border-radius: 0 10px 0 0;
    -webkit-border-radius: 0 10px 0 0;
    -moz-border-radius: 0 10px 0 0;
    float: right;
    width: 5px;
    height: 4px;
    margin-right: 10px;
    margin-top: -4px;
}

.ex2 {
    background-color: #47a5a4;
    -webkit-radius: 5px 0 5px 5px;
    -moz-radius: 5px 0 5px 5px;
    border-radius: 5px 0 5px 5px;
    font-family: Arial;
    font-weight: bold;
    font-size: 16px;
    text-align: center;
    margin-left: 0;
    margin-right: 10px;
    padding-bottom: 4px;
    padding-right: 0;
    padding-top: 4px;
}