Unverified50% confidenceFactExact time
<!DOCTYPE html> declares the document type as HTML5, informing the browser to render in standard mode.
1
Sources
50%
Confidence
Long-term
Relevance
9/11/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedHTML自1993年发布以来历经多次演进,目前主流为HTML5标准,网页标签彼此嵌套构成树状结构称为DOM(文档对象模型)77% similarUnverifiedHTML5相比HTML4引入了语义化标签、原生音视频支持、Canvas/WebGL图形API以及本地存储等能力73% similarVerifiedWordPress introduced the Gutenberg block editor starting from version 5.0, in which the 'Custom HTML' block allows direct insertion of raw HTML/CSS/JavaScript code.72% similarUnverifiedcontenteditable is a global attribute provided by HTML5, first introduced by Internet Explorer 5.5 and later incorporated into the W3C standard.71% similarUnverifiedThe HTML5 native <input type='date'> control was officially released in 2014, and its coverage in modern browsers has exceeded 96%.69% similar
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