Reading up on html

Safari 27's customizable select allows full visual styling of `<select>` elements without JavaScript, but requires text or accessible attributes on every option for usability, accessibility, and fallback compatibility.

The new `sizes="auto"` HTML attribute, combined with `loading="lazy"`, lets browsers automatically determine the best image size to request, eliminating the need for manual `sizes` calculations.

You can create and style arbitrary custom HTML tags—they default to inline like <span>—but this practice trades semantic clarity for convenience.

Native HTML elements like <details>, <dialog>, and <datalist> can replace some JavaScript, but still lack the interactivity and styling needed for complex apps.

The article catalogs long-obsolete HTML elements like `<xmp>`, `<spacer>`, `<keygen>`, and `<isindex>`, explaining their original purposes and why they were abandoned.