title: Why does some HTML have large gaps in the source?
body: <p>Why do some HTML pages have large gaps in the source code? I have seen this with a lot of PHP pages; when peeking at the source through Chrome dev tools I see large spaces (example below). <em>Why does this happen?</em> Does this even have to do with PHP at all? (I'm just guessing because I have only seen it on .php pages)<img src="https://i.stack.imgur.com/bnwiD.jpg" alt="enter image description here"></p>