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HTML

HTML Style Guide

HTML style guides ensure clean and readable code.

Read Time

5 min read

Difficulty

Beginner

Last Updated

Jun 15, 2026

Version

v1.0.0

Introduction

A consistent coding style keeps HTML readable. Developers follow rules like using lowercase tags and double-quoting attributes. Clean code prevents rendering errors across different browsers.

Syntax

1<!-- NOTE: reference file does not cover style-guide syntax template fully — placeholder used -->
2<img src="pic.jpg" alt="Description">

Example

1<!-- this shows clean code -->
2<!DOCTYPE html>
3<html lang="en">
4  <head>
5    <meta charset="UTF-8">
6    <meta name="viewport" content="width=device-width, initial-scale=1.0">
7    <title>Clean HTML</title>
8  </head>
9  <body>
10    <!-- Use lowercase and quotes -->
11    <a href="/home">Home</a>
12  </body>
13</html>

Try it Yourself

Hands-on Practice

Modify the code below to see how it affects the output. This is the best way to learn!

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Key Points

Lowercase element names prevent confusion.
Always close HTML tags properly.
Quote attribute values with double quotes.
Indent nested elements logically.

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