Best Practices & Validation

∙ Chapter 25

Clean HTML is easier to style, easier to maintain, and less buggy. These rules help you write professional HTML from day one.

Use semantic tags

Prefer <header>, <main>, <footer> instead of only divs.

Alt + labels

Always add alt on images and labels for inputs.

One h1

Use one main page title. Use h2/h3 for sections.

Separate CSS/JS

Keep HTML for structure. Use CSS for design and JS for behavior.

ℹ️Validate your pages to catch mistakes early (missing closing tags, invalid nesting, wrong attributes).

clean-html.php

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💡 This is a solid starter template for most websites.

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