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Html elements noscript, img, and sub

noscript element Specifies alternative content to display if a client browser does not support scripts, img element Defines an image object that is embedded in the document, sub element Specifies that the enclosed text should be rendered in the browser as subscript. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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noscript noscript and img, noscript, img, and sub

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chrome 1.0safari 1.0Firefox 1.0ie 3.0opera 5.0