To HTML Content Category Interactive

Html elements video, h3, and h3

video element The HTML  <video> element is used to embed video content in an HTML or XHTML document, h3 element Heading Level 3, h3 element Heading Level 3. These elements allows child elements from interactive, embedded, heading, sectioning, phrasing, and metadata content categories.

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video video and h3, video, h3, and h3

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