Unverified50% confidenceFactExact time
contenteditable is a global attribute provided by HTML5, first introduced by Internet Explorer 5.5 and later incorporated into the W3C standard.
1
Sources
50%
Confidence
Long-term
Relevance
9/9/2026
First Seen
Sources
Related Entities
Related Claims
Unverifiedcontenteditable is a rich text editing attribute introduced in HTML5, and is used by mainstream products such as Gmail, Notion, Slack, and Linear.78% similarUnverifiedHTML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）78% 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74% similarUnverifiedHTML was invented by Tim Berners-Lee in 1991, and the HTML5 standard was officially published by the W3C in 2014.72% 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% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/884448API
curl https://kongchang.com/api/v1/knowledge/claims/884448MCP
get_claim(id=884448)