Html elements canvas, hgroup, and article

canvas element The Canvas (<canvas>) HTML element can be used to draw graphics via scripting (usually JavaScript), hgroup element The HTML Headings Group Element (<hgroup>) represents the heading of a section, article element Self-contained composition in a document. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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canvas canvas and hgroup, canvas, hgroup, and article

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