From the course: Building a Resilient Web

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The HTML design principles

The HTML design principles

- [Instructor] The resilience of the web platform is defined in the HTML design principles that were published by the W3C. These principles are sorted into four main categories, compatibility, utility, interoperability, and universal access. I want to walk through each of these principles with you so you can see how the web platform is built for resilience and understand how the web platform evolves over time. First off, the compatibility principles. Conformance for documents and implementations. Documents and implementations meaning the browser is parsing those documents should follow the same basic design principles. And implementations should conform not only to the current standard, but also support outdated and non-standard code. This is what ensures backwards compatibility for HTML elements we no longer use. And also ensures that HTML elements that are new and maybe not supported by the browser will still be parsed…

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