Give a line break without using <br/>

Question

I have a button over my div.

<button id="showmenu" type="button">Show menu</button>
<div class="sidebarmenu">
    Some code
</div>

The div is displayed right below the button. I want the button to be displayed with a line break. I know it is a bad practice to use <br/>. How do I give space without it?

Answer 1

With css:

.sidebarmenu{
  margin-top: 20px;
}

Live example: http://jsfiddle.net/BhsYx/