HTML Attribute Reference

<input> Specifies the types of files that the server accepts (only for type="file")

<form> Specifies the character encodings that are to be used for the form submission accesskey

<form>

Not supported in HTML 5. Specifies the alignment according to surrounding elements. Use CSS instead alt <area>, <img>, <input> Specifies an alternate text when the original element fails to display async <script> Specifies that the script is executed asynchronously (only for external scripts) autocomplete <form>, <input>

<button>, <input>, <select>, <textarea> Specifies that the element should automatically get focus when the page loads autoplay <audio>, <video>

Not supported in HTML 5. Specifies the background color of an element. Use CSS instead border Not supported in HTML 5. Specifies the width of the border of an element. Use CSS instead charset <meta>, <script>

<input>

(for type="checkbox" or type="radio") cite <blockquote>, <del>, <ins>, <q>

Specifies one or more class names for an element (refers to a class in a style sheet) color Not supported in HTML 5. Specifies the text color of an element. Use CSS instead cols <textarea> Specifies the visible width of a text area colspan <td>, <th> Specifies the number of columns a table cell should span content <meta>

Specifies whether the content of an element is editable or not controls <audio>, <video>

coords <area>

<object> Specifies the URL of the resource to be used by the object data-*

Used to store custom data private to the page or application datetime <del>, <ins>, <time>

<track> Specifies that the track is to be enabled if the user's preferences do not indicate that another track would be more appropriate defer <script> Specifies that the script is executed when the page has finished parsing (only for external scripts) dir

Specifies the text direction for the content in an element dirname <input>, <textarea> Specifies that the text direction will be submitted disabled <button>, <fieldset>, <input>, <optgroup>, <option>, <select>, <textarea>

<a>, <area> Specifies that the target will be downloaded when a user clicks on the hyperlink draggable

Specifies whether an element is draggable or not enctype <form>

enterkeyhint

<label>, <output>

<button>, <fieldset>, <input>, <label>, <meter>, <object>, <output>, <select>, <textarea> Specifies the name of the form the element belongs to formaction <button>, <input>

headers <td>, <th> Specifies one or more headers cells a cell is related to height <canvas>, <embed>, <iframe>, <img>, <input>, <object>, <video>

Specifies that an element is not yet, or is no longer, relevant high <meter> Specifies the range that is considered to be a high value href <a>, <area>, <base>, <link> Specifies the URL of the page the link goes to hreflang <a>, <area>, <link>

<meta>

Specifies a unique id for an element inert

Specifies that the browser should ignore this section inputmode

Specifies the mode of a virtual keyboard ismap <img>

<track>

<track>, <option>, <optgroup> Specifies the title of the text track lang

Specifies the language of the element's content list <input>

element loop <audio>, <video>

<meter> Specifies the range that is considered to be a low value max <input>, <meter>, <progress>

<input>, <textarea> Specifies the maximum number of characters allowed in an element media <a>, <area>, <link>, <source>, <style>

<form>

<input>, <meter>

<input>, <select> Specifies that a user can enter more than one value muted <video>, <audio> Specifies that the audio output of the video should be muted name <button>, <fieldset>, <form>, <iframe>, <input>, <map>, <meta>, <object>, <output>, <param>, <select>, <textarea>

<form> Specifies that the form should not be validated when submitted onabort <audio>, <embed>, <img>, <object>, <video>