<style type="text/css">
div.borderwidth4 {
padding:10px 15px;
border:3px solid #ccc;
border-bottom-width:6px;
border-right-width:6px;
}
</style>
<div class="borderwidth4">
border:3px solid #ccc;<br>
border-bottom-width:6px;<br>
border-right-width:6px;<br>
</div>