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HTML

What is HTML?

HTML, short for HyperText Markup Language, is the standard language for structuring content on the web. Every page is an HTML document at its foundation: a hierarchy of elements that define headings, paragraphs, links, images, forms, and the rest of a page's building blocks. It is the skeleton of the web, the structure that CSS styles and JavaScript brings to life.

Tim Berners-Lee developed the first version in 1991, and the language has moved through several iterations since. The current standard, HTML5, added semantic elements like header, nav, and article, native audio and video, and a set of APIs that gave pages capabilities that once required plugins. The key idea is that HTML describes what content means, not just how it looks. A heading element marks a heading because it is one, which matters well beyond appearance. A screen reader uses that structure to let a blind user navigate a page by its headings, and search engines lean on the same semantics to understand what a page is about.

HTML never works alone. It defines structure and meaning, CSS handles visual presentation, and JavaScript adds interactivity and dynamic behaviour. Those three technologies together form the foundation of every web-based interface, and getting the HTML layer right is what keeps the other two from papering over a weak base.

HTML at Dallonses

Clean, semantic HTML is the part of web development that quietly decides whether everything built on top of it holds up. We treat the markup as the foundation it is, choosing elements for what they mean so the structure stays readable to browsers, assistive technology, and the next developer alike.

That foundation is also where accessible websites and inclusive design begin. Proper headings, labelled forms, and meaningful landmarks let people using screen readers move through a product the way everyone else does, and they give search engines a clear map of the content. Getting this right early costs little; retrofitting it later costs a lot.

Want a site built on solid, accessible foundations rather than patched over later? Let's start there.

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Aymón holding a Tools magazine in front of their facem
Ari working on a laptop outdoors surrounded by plants
Top-down view of a wooden desk with a keyboard, mouse, and headphones
Hand-drawn illustration of a hand snapping fingers
Nico leaning against a water cooler next to a fire extinguishe
Close-up of an open computer with circuit board and components on a wooden desk
Bernat and Andreu collaborating at a desk with monitors and a laptop
Hand-drawn illustration of an open hand waving
Aymón holding a Tools magazine in front of their facem
Ari working on a laptop outdoors surrounded by plants
Top-down view of a wooden desk with a keyboard, mouse, and headphones
Hand-drawn illustration of a hand snapping fingers
Nico leaning against a water cooler next to a fire extinguishe
Close-up of an open computer with circuit board and components on a wooden desk
Bernat and Andreu collaborating at a desk with monitors and a laptop
Hand-drawn illustration of an open hand waving