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Fork of HTML Starter, Hello World

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Mmarc.sarembe@gmail.com
Last edited Apr 16, 2026
Created on Apr 16, 2026

This example demonstrates a simple interactive color-changing interface built with plain HTML, CSS, and JavaScript. It shows a "Hello World" message and a button that, when clicked, toggles a pink background color on both elements through classList.toggle. The page uses the DOM API via document.querySelector to select elements and add an event listener. The styling uses CSS grid to center content and defines a light yellow background with a lightgreen message box.

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