མཐུད་སྣེ་འགྲེལ་བྱང་།: polyfill
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HTML5 Details Polyfill
Adds fallback support for the HTML5 <details> and <summary> elements in browsers that don't support them.
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Compatiblizr
Plugin for patching old versions of IE (7 and 8)to work with CSS3 selectors and Media Queries.