Konstantin BeregovoyFrontend architecture, web standards, accessibility and AI-assisted engineering.https://bereg.dev/Brighter than #fff: building an HDR logo tool in the browserhttps://bereg.dev/blog/hdr-glow/https://bereg.dev/blog/hdr-glow/How I built hdr-glow, a free browser tool that makes parts of a logo glow on HDR screens. A gain-map container, a JPEG encoder and a PQ color profile, written from scratch in TypeScript and checked byte for byte.Thu, 15 Oct 2026 00:00:00 GMTIf <script> is for JS, then what is <ruby> for?https://bereg.dev/blog/ruby-tag-html/https://bereg.dev/blog/ruby-tag-html/The ruby element is a semantic HTML gem for phonetic annotations, with zero JavaScript and native accessibility.Wed, 03 Jun 2026 00:00:00 GMTForget innerHTML: we are moving to setHTML()https://bereg.dev/blog/sethtml-sanitizer-api/https://bereg.dev/blog/sethtml-sanitizer-api/The native Sanitizer API gives secure defaults against DOM-based XSS, fewer dependencies and an easier path to SOC compliance.Mon, 18 May 2026 00:00:00 GMTStop the Dancing Numbers with One Line of CSShttps://bereg.dev/blog/dancing-numbers-tabular-nums/https://bereg.dev/blog/dancing-numbers-tabular-nums/Proportional digits make prices and timers jitter. font-variant-numeric: tabular-nums fixes it without a monospace font.Mon, 06 Apr 2026 00:00:00 GMT