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CSS3, JavaScript and HTML5 explained

Making IE recognize HTML5 elements

| February 21, 2010

IE6, IE7 and IE8 don’t recognize the HTML elements. This causes a major problem when you’re using the HTML5 elements, such as ‘aside’, as part of (or your complete) selector in your CSS. Add this snippet either in your HTML or as a condionally included file, and IE will be able to handle your HTML5 elements as selectors in your CSS, and as members of your DOM in javascript.