Why do <h5> and <h6> have smaller font sizes than <p> in most user agent default stylesheets?
问题 The default <h5> and <h6> section headings in HTML5 have font sizes of 0.83em and 0.67em , respectively, while the default <p> font size is 1em . That means in a block of text containing <h5> , <h6> and <p> tags, these headings will be smaller than the text they head: (Default body font size above is 14px ) This seems counter-intuitive: headings are supposed to draw the eye and command the start of a section, and font size is an important visual cue. Is there a reason why the default font