In jsfiddle on the left side it tells you how many lines you’ve used, is there a limit number you want to stay under as much as possible? Is there a minimum at all you should try to keep it to? Or is the sky the limit, meaning, it doesn’t really matter how long the code is in its entirety. or maybe it depends on different factors, i.e., how much bandwidth you have, so on and so forth.
For example:
html: 366 lines
CSS: about 959 lines
Javascript: 854 lines
I would keep it that way, at least for working on it. After everything is “final” you can minify it to remove new lines and indentation so everything would be on one long line.
Without the indentation you end up with something like </div></div></div></div></div>
Imagine that if things aren’t working because there is an extra </div> how hard it would be to know which one to remove. (OK, not the best example, but you get the idea)
For an example of JavaScript, download copies of jquery and jquery.min and open each in your text editor.