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Html Attributes — Free Html Tutorial

Learn Html Attributes in Html with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

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TL;DR: Learn Html Attributes in Html with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 14, 2026

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Html Attributes in Html

Attributes provide extra information about HTML elements. Always placed inside the opening tag in name="value" form.

Global attributes work on any element: id (unique on page), class (group elements for CSS), title (tooltip), hidden (hides element), data-* (store custom data).

Some attributes are boolean — just their presence means true: disabled, readonly, required, checked, autoplay, muted.

The id must be unique. The class can be shared. href gives links destinations. src gives media their source.

Html Attributes — Syntax

<tag attribute="value">content</tag>

<div id="hero" class="card highlight" title="Tooltip">
<input type="text" required disabled placeholder="Enter name">
<img src="photo.jpg" alt="Description" width="300">
<a href="https://syllab.in" target="_blank" rel="noopener">

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