Input Group Addons make rounded
Created by: anonprophet
<div class="form-group">
<div class="input-group">
<input type="text" name="username" value="" class="form-control input-lg" placeholder="Username" />
<div class="input-group-addon"><b>LES</b></div>
<input type="hidden" name="rand" value="LES" />
</div>
</div>