<p>This is a 
paragraph at the beginning of my document</p>
<p>This is another paragraph following
 the first but it goes 
on much much longer 
so that it moves on 
to at least one more line. 
See what happens when the browser 
window changes size as it is being rendered.</p>
<p>And here is a third paragraph. 
Note that the paragraphs are spaced out.</p>

And this is how they will rendered by default:

This is a paragraph at the beginning of my document

This is another paragraph following the first but it goes on much much longer so that it moves on to at least one more line. See what happens when the browser window changes size as it is being rendered.

And here is a third paragraph. Note that the paragraphs are spaced out.

And what browser I am using actually does.