HTML <tr> Tag

The HTML <tr> tag represents a row of cells in an HTML table.

The <tr> element is a crucial part of any HTML table because the cells that it represents, provide the data that is presented in the table.

A table row can contain one or more <td> and <th> tags which determine individual cells, and script supporting elements (<script>, <template>).

Syntax

The <tr> tag is written as <tr></tr> with its children nested between the start and end tags.

Like this:

Example

Usage Contraints

The <tr> element can only be used in the following contexts:

• As a child of a <thead> element
• As a child of a <tbody> element
• As a child of a <tfoot> element
• As a child of a <table> element, after any <caption>, <colgroup>, and <thead> elements, but only if there are no <tbody> elements that are children of the <table> element

Also, the <tr> tag must contain one of the following tags:

• When the parent node is a <thead> element: Zero or more <th> elements
• Otherwise: Zero or more <td> or <th> elements

Attributes

Attributes can be added to an HTML element to provide more information about how the element should appear or behave.

There are 3 kinds of attributes that you can add to your HTML tags: Element-specific, global, and event handler content attributes.

The <tr> element accepts the following attributes.

Element-Specific Attributes

This table shows the attributes that are specific to the <tr> tag/element.

Global Attributes

The following attributes are standard across all HTML5 elements. Therefore, you can use these attributes with the <tr> tag , as well as with all other HTML tags.

• accesskey
• class
• contenteditable
• contextmenu
• dir
• draggable
• dropzone
• hidden
• id
• inert
• itemid
• itemprop
• itemref
• itemscope
• itemtype
• lang
• spellcheck
• style
• tabindex
• title
• translate

For a full explanation of these attributes, see HTML 5 global attributes.

Event Handler Content Attributes

Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event.

Below are the standard HTML5 event handler content attributes.

Again, you can use any of these with the <tr> element, as well as any other HTML5 element.

• onabort
• oncancel
• onblur
• oncanplay
• oncanplaythrough
• onchange
• onclick
• oncontextmenu
• ondblclick
• ondrag
• ondragend
• ondragenter
• ondragexit
• ondragleave
• ondragover
• ondragstart
• ondrop
• ondurationchange
• onemptied
• onended
• onerror
• onfocus
• onformchange
• onforminput
• oninput
• oninvalid
• onkeydown
• onkeypress
• onkeyup
• onload
• onloadeddata
• onloadedmetadata
• onloadstart
• onmousedown
• onmousemove
• onmouseout
• onmouseover
• onmouseup
• onmousewheel
• onpause
• onplay
• onplaying
• onprogress
• onratechange
• onreadystatechange
• onscroll
• onseeked
• onseeking
• onselect
• onshow
• onstalled
• onsubmit
• onsuspend
• ontimeupdate
• onvolumechange
• onwaiting

For a full explanation of these attributes, see HTML 5 event handler content attributes.

Differences Between HTML 4 & HTML 5

HTML5 does not support the following attributes, which are supported in HTML 4:

• align
• char
• charoff
• valign
• bgcolor

To see more detail on the two versions see HTML5 <tr> Tag and HTML4 <tr> Tag. Also check out the links to the official specifications below.

Template

Here's a template for the <tr> tag with all available attributes for the tag (based on HTML5). These are grouped into attribute types, each type separated by a space. In many cases, you will probably only need one or two (if any) attributes. Simply remove the attributes you don't need.

For more information on attributes for this tag, see HTML5 <tr> Tag and HTML4 <tr> Tag.

Tag Details

For more details about the <tr> tag, see HTML5 <tr> Tag and HTML4 <tr> Tag.

Specifications

Here are the official specifications for the <tr> element.

• HTML5 Specification (W3C)
• HTML Living Standard (WHATWG)
• Current W3C Draft (the next version that is currently being worked on)
• HTML 4 (W3C)

What's the Difference?

W3C creates "snapshot" specifications that don't change once defined. So the HTML5 specification won't change once it becomes an official recommendation. WHATWG on the other hand, develops a "living standard" that is updated on a regular basis. In general, you will probably find that the HTML living standard will be more closely aligned to the current W3C draft than to the HTML5 specification.