Another example is having a twenty word heading for a ten word paragraph. Sure, common sense will tell you not to do that, but I still see many pages coded like that in my daily surfing. Blank lines placed repeatedly between objects on a page can cause visual discomfort and often even confusion to someone visiting your site. If you place a significant whitespace gap between sections on a page, a visitor may assume an upper section is the end of the page if they don t realize there is a scrollbar. Having a few screenlengths of blank space on a page tends to look obnoxious, and is heavily frowned upon.
Some people like to use capital letters instead of heading tags to emphasize a heading text.
Generally, capital letters look very awkward on a page unless bolded or otherwise differentiated from the text around it. If you are trying to emphasize a word or a phrase in a paragraph, bolding, italicizing, or changing its texts color is often a wiser choice than placing it in capital letters. Excessively large or small text sizes may cause your page to seem less professional. Indentations are generally not used on the web, and an indent tag was never created. If you try to place a tab in your web page it will just be considered whitespace and ignored.