<p>Pros: This one works very simply and doesnt require any extra HTML</p>
<p>Cons: Doesnt work in IE7 or below, and relies on a specific type of block</p>
<p>Example for an h1:</p>

h1:before{
  display:block;
  content: " ";
  margin-top:-100px;
  height: 100px;
  visibility: hidden;
}