An interactive button is a small project that shows how HTML and JavaScript work together. HTML creates the button and message area; JavaScript listens for a click and changes the page. Review the JavaScript explanation on Playcode123.com, then use the…
Variables give names to values so your JavaScript can remember and reuse them. In this practical example, you will store a learner’s name, completed lessons, and weekly goal, then show a progress message on the page. For the core concepts,…
Last updated: 28 August 2026 Separate examples show what each HTML control looks like. This project shows how the controls work together. After reviewing the HTML examples on Playcode123.com, build a small activity selector that displays your choices locally. This…
A separate .js file keeps JavaScript out of your HTML and makes it easier to reuse and debug. This practical tutorial connects index.html to script.js and checks that the path works. For the core language concepts, read the JavaScript explanation…
A separate CSS file keeps the structure of a webpage in HTML and its design rules in CSS. This practical tutorial shows you how to connect the two files, check that the link works, and solve the most common file-path…
Last updated: 28 August 2026 After trying links on Playcode123.com, use them to help readers move through a longer project page. This tutorial builds a contents list for a webpage checklist. It starts with ordinary HTML links so navigation remains…
