I am wondering what is Quirks mode in IE8 Developer toolbar? Why page rendering is different in Quirks mode than in IE8 standard mode?
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I am wondering what is Quirks mode in IE8 Developer toolbar? Why page rendering is different in Quirks mode than in IE8 standard mode?
Simply speaking, it is for really old webpages to show in the way it always has been on IE. So if a webpage’s HTML doesn’t start with a DOCTYPE that indicates Standard Compliance Mode, then IE will show it in Quirks mode. In such mode, IE uses its own Box Model to render the page elements.
A simple example is: IE’s box model adds padding to the inside of the width, so a div occupies the width number of pixels, but Standard Compliance mode add the padding to the width, so a div will occupy width + padding number of pixels.
You can try a div with width 300px and padding 100px and click between the modes in IE Developer’s bar to see the difference.
More info at: http://en.m.wikipedia.org/wiki/Quirks_mode