HTML Attributes

This is a list of some common HTML attributes.

Attribute	Description	Belongs to Information
alt	Specifies an alternate text when the original element fails to display	<area>, <img>, <input>
checked	Specifies that an input element should be pre-selected when the page loads	<input>
class	Specifies one or more classnames for an element (refer to a class in a style sheet)	Global attribute
disabled	Specifies that the specified element/group of elements should be disabled	<button>, <fieldset>, <input>, <optgroup>, <option>, <select>, <textarea>
href	Specifies the URL of the page the link goes to	<a>, <area>, <base>, <link>
id	Specifies a unique id for an element	Global attribute
readonly	Specifies that an input field is read-only	<input>, <textarea>
src	Specifies the URL of the media file	<audio>, <embed>, <iframe>, <img>, <input>, <script>, <source>, <track>, <video>
style	Specifies an inline CSS style for an element	Global attribute
title	Specifies extra information about an element	Global attribute
value	Specifies the value of the element	<button>, <input>, <li>, <option>, <meter>, <progress>, <param>