The CodeLive Studio Blog

Practical guides on HTML, CSS and JavaScript — written for humans, with examples you can paste straight into the editor. Learn a concept, try it live, keep the code.

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Browser window showing an HTML code editor next to a live website preview
HTML7 min

Online HTML Editor with Live Preview: The Complete Beginner's Guide

Learn how an online HTML editor with live preview works, why it beats installing software for learning and quick tests, and how to write, style and share your first page in minutes.

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Keyboard with glowing code shortcut keys and a lightning bolt
Productivity6 min

10 Emmet Abbreviations That Will Instantly Speed Up Your HTML

Stop typing boilerplate by hand. These 10 Emmet abbreviations — from ul>li*5 to lorem and tag multiplication — let you write HTML at the speed you think it.

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Colorful color picker palette with hex code swatches and gradients
CSS8 min

CSS Colors Explained: HEX vs RGB vs HSL (and When to Use Each)

HEX, RGB, HSL and named colors all work in CSS — so which should you use? A practical guide with copy-paste examples, plus how modern relative colors make HSL the smart default.

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JavaScript console with a running script and gear symbols
JavaScript6 min

How to Run JavaScript in Your Browser Right Now (No Setup Needed)

Three ways to run JavaScript today — DevTools console, an inline script, and an online playground — explained for absolute beginners, with what to use each one for.

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Multiple floating app windows comparing code playgrounds
Tools7 min

7 Free CodePen Alternatives for Testing HTML, CSS and JavaScript

Looking for a CodePen alternative? Seven free online playgrounds compared — live preview, offline support, sharing, accounts and what each tool is genuinely best at.

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Three building blocks stacked as webpage layers representing structure, style and behavior
Basics7 min

HTML vs CSS vs JavaScript: What Each One Actually Does (With Real Examples)

The three languages of every website, explained with one running example you can try live: HTML is the skeleton, CSS the clothing, JavaScript the muscles. Includes a copy-paste demo.

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