The foundation most teams get wrong first.
Semantic markup, modern CSS layout, and real accessibility — the layer underneath every framework that determines whether the rest of the stack actually performs and works for everyone.
Why teams choose HTML5/CSS3 — and when we agree.
Semantic markup as a default
Proper HTML elements used for what they mean, not just what they render as — it's the foundation accessibility and SEO are both built on.
Modern CSS, not legacy hacks
Grid, Flexbox, container queries, and CSS custom properties used deliberately — not float-based layouts patched together with framework overrides.
Accessibility built in, not bolted on
Keyboard navigation, focus states, and screen-reader behavior considered from the first markup decision, not a pre-launch audit.
Performance starts at the markup layer
Clean, lean HTML and CSS reduce the work every framework and browser has to do on top of it.
HTML5/CSS3 work we actually ship.
Semantic, accessible markup
HTML structured around meaning, not just visual layout — the difference shows up in accessibility audits and SEO crawls.
Modern CSS architecture
Design-token-driven styling with Grid and Flexbox, built to scale across a design system without specificity wars.
Email template development
Cross-client HTML email that actually renders consistently — a notoriously unforgiving corner of front-end work.
Performance & Core Web Vitals optimization
Markup and CSS audits that find the real source of layout shift and slow paint, not just generic Lighthouse fixes.
What clients ask before hiring us for HTML5/CSS3.
Every framework eventually renders down to HTML and CSS — a framework can't fix bad markup structure underneath it. Accessibility, SEO, and a lot of layout bugs trace back to this layer regardless of what framework sits on top.
Usually yes — most accessibility problems are markup and CSS issues (missing labels, poor focus order, insufficient contrast) that can be fixed without touching the visual design at all.
Both — plain HTML/CSS is often the right, fast, low-maintenance answer for marketing sites and landing pages that don't need a framework's overhead.
Got a HTML5/CSS3 project in mind?
A 30-minute call with a principal engineer — no salespeople, no slide decks. You will leave with a written perspective on your plan whether we end up working together or not.