Additionally, many new web pages continue to be created in the older fashion, since the compatibility workarounds introduced by browser developers mean that an understanding of standardized methods is not strictly necessary.
[2] One prominent difference between quirks and no-quirks modes is the handling of the CSS Internet Explorer box model bug.
As a result, browsers typically do not inherit font sizes into tables in quirks mode.
The layout of images inside table cells is handled the same way "quirks" mode operates, instead, which is fairly consistent with legacy browsers such as Internet Explorer 7 (and earlier).
Content served with the Content-Type application/xhtml+xml is rendered in Standards mode in Chrome, Firefox, Internet Explorer 9, Safari, and Opera.
[2] In most browsers, the Document Object Model extension document.compatMode indicates the rendering mode for the current page.
[8] Additionally, in Mozilla Firefox and Opera the rendering mode in use for a given page is indicated on the 'Page info' informational box.