Source code
(discussion of source code)
White space
White space (such as space characters, tabs, paragraph returns) is always collapsed by the browser—into a single space if it falls within a block-level HTML element (such as a paragraph), and into nothing at all if it falls outside one. This means that white space can be used almost completely freely as a means to clarifying the code while working on it;
White space around inline tags can cause minor cosmetic problems and throughout these notes care should be taken to observe the placement of space characters around inline tags;
White space within tags is important in some places and not in others. Where it needs attention it is noted.
