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…
Building a webpage locally means creating and testing it on your own computer before uploading it to a web server. It is a safe way to practise, make mistakes, and check that your HTML, CSS, and JavaScript work together. Playcode123.com…
Many beginner website problems are not caused by HTML, CSS, or JavaScript syntax. They happen because a browser cannot find a file. Understanding folders, filenames, and relative paths helps you connect pages, stylesheets, scripts, and images reliably. Use this tutorial…
Web editing has changed from simple text files to visual builders, online sandboxes, and professional development environments. The tools look different, but browsers still receive HTML for structure, CSS for presentation, and JavaScript for behavior. Playcode123.com teaches those core languages…