HTML & CSS
HTML Element
A piece of structured content on a page, marked up with an opening and closing tag.
Reviewed by the RadarTrek editorial team · June 2026
An HTML element is a building block of a web page — a heading, paragraph, image, link, or button — defined by a tag like <h1> or <p>. Elements can nest inside other elements, building up the tree structure (the DOM) that the browser renders and JavaScript can manipulate.
Why it matters
- —Every visible part of a web page is built from HTML elements.
- —Semantic elements (like <nav>, <header>, <article>) help search engines and screen readers understand your page.
- —Understanding the element tree is the prerequisite for both CSS styling and JavaScript interactivity.
Where to learn this
🎓
Tags and Elements
HTML Fundamentals course
This is the exact lesson that covers this term in depth — with examples, diagrams, and a hands-on exercise.