<fieldset>
  <legend>Titel</legend>
  Bla bla bla
</fieldset>

<fieldset>
  <legend>Titel 2</legend>
  Bla bla bla 2
</fieldset>

<style>

fieldset
{
    border:3px solid blue;
    -moz-border-radius:8px;
    -webkit-border-radius:8px;	
    border-radius:8px;
    
}

</style>

Began life as a copy of #1013932