A collection of bad practices in HTML, copied from real websites.

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HTML has evolved significantly since 1993, leaving behind numerous obsolete elements that were once part of the standard. This exploration covers deprecated tags like <marquee>, <bgsound>, framesets, various code display elements (<xmp>, <listing>, <plaintext>), <spacer>, <keygen>, <nextid>, <isindex>, and <dir>. Each represented experiments in web development that addressed specific needs of their era, from background sounds and frame-based layouts to primitive search functionality and cryptographic key generation. While most are no longer supported or have modern equivalents, they illustrate how the web platform evolved through trial and error, with backward compatibility sometimes preserving these relics even after deprecation.

The HTML Elements Time Forgot