Edit in JSFiddle

<div class="radius">Radius Örnek</div>

body {

  background-color:#325780;
}

.radius {
  background-color:#FFFFFF;
  width:200px;
  border:1px dotted black;
  font:bold 22px/100px Tahoma;
  text-align:center;
 -webkit-border-radius: 12px;
 -moz-border-radius: 12px;
  border-radius: 12px;
}