Building Simple Tabs with Vanilla JavaScript
The article provides a step-by-step guide to creating a tab system with plain HTML, CSS, and JavaScript. The HTML structure uses a `<ul>` with `role="tablist"` and list items with `role="tab"` and `aria-selected` attributes for accessibility. The content panels are sibling `<div>` elements, with the active panel having a `show` class. CSS uses flexbox for the tab bar and hides panels by default, showing only the one with the `show` class. JavaScript adds click event listeners to tabs, toggling the `active` class on tabs and `show` class on corresponding panels. The solution is lightweight, requires no libraries, and is suitable for simple use cases. The author emphasizes accessibility and progressive enhancement.
Developers can build accessible, lightweight tab components without relying on heavy frameworks.