HTML5 Reference

HTML <col> tag

Definition

The <col> tag is a self closing tag used to define criteria for a table column using the span attribute.

The <col> tag must be used within a <colgroup> tag.

The use of the span attribute is mutually exclusive when using the <col> and <colgroup> elements.

Example


<table>
  <colgroup>
    <col span="2" style="background-color:purple;">
    <col style="background-color:blue;">
  </colgroup>
  <tr>
    <th>Fruit</th>
    <th>Colour</th>
    <th>Quantity</th>
  </tr>
  <tr>
    <td>Banana</td>
    <td>Yellow</td>
    <td>5</td>
  </tr>
  <tr>
    <td>Pea</td>
    <td>Green</td>
    <td>50</td>
  </tr>
</table>
Fruit Colour Quantity
Banana Yellow 5
Pea Green 50

Attributes

The following attributes can be used with the <col> tag.


<col> Specific Attributes
Attribute Value Description Example
spanNon-negative integerSpecifies the number of columns in a column group - must be greater than zero.

<col span="2">
<col> Global Attributes
Attribute Description Example
Common
classSpecifies a classname for the element allowing you to apply the style of the predefined class to the content.

<col class="name">
idSpecifies a unique id for the element allowing you to apply the style of the predefined id to the content.

<col id="name">
styleSpecifies an inline style for the element allowing you to apply the style to the contentt.

<col style="color:red;">
titleSpecifies an inline style for the element allowing you to apply the style to the content.

<col title="Content info">
Keyboard
accesskeySpecifies a keyboard shortcut to associate with the element.

<col accesskey="a">
tabindexSpecifies a tab order for the element.

<col tabindex="1">
Language
dirSpecifies the directional flow of the content.

<!-- The text will flow from left to right -->
<col dir="ltr">
<!-- The text will flow from right to left -->
<col dir="rtl">
langSpecifies a language code for the content of the element.

<col lang="en">
spellcheckSpecifies an inline style for the element allowing you to apply the style to the contentt.

<!-- Valid values true and false. -->
<!-- Default inherited/browser specific. -->
<col spellcheck="true"> 
translateSpecifies an inline style for the element allowing you to apply the style to the content.

<!-- Valid values yes and no. -->
<!-- Default yes. -->
<col translate="no"> 
Miscellaneous
contenteditableSpecifies whether the content of the element is editable.

<!-- Valid values true and false. -->
<!-- Default inherited. -->
<col contenteditable="true"> 
draggableSpecifies whether the element is draggable.

<!-- Valid values true and false. -->
<!-- Default browser specific. -->
<col draggable="true">
hiddenSpecifies whether the element is not yet, or no longer, relevant.

<!-- Valid values an empty string or hidden -->
<col hidden> 
<col hidden="hidden"> 
<col> Event Attributes
Attribute Description Example
Document Element
oncopyThe script to be run when the user copies the content of an element.

 <!-- Executes go() function -->
<col oncopy="go()"> 
oncutThe script to be run when the user cuts the content of an element.

 <!-- Executes go() function -->
<col oncut="go()">
onpasteThe script to be run when the user pastes some content into an element.

 <!-- Executes go() function -->
<col onpaste="go()">
Drag and Drop
ondragThe script to be run when an element is dragged.

 <!-- Executes go() function -->
<col ondrag="go()">
ondragendThe script to be run when an element has stopped being dragged.

 <!-- Executes go() function -->
<col ondragend="go()">
ondragenterThe script to be run when an element has been dragged to a valid drop target.

 <!-- Executes go() function -->
<col ondragenter="go()">
ondragleaveThe script to be run when an element leaves a valid drop target.

 <!-- Executes go() function -->
<col ondragleave="go()">
ondragoverThe script to be run when an element is being dragged over a valid drop target.

 <!-- Executes go() function -->
<col ondragover="go()">
ondragstartThe script to be run at the start of a drag operation.

 <!-- Executes go() function -->
<col ondragstart="go()">
ondropThe script to be run when a dragged element is being dropped.

 <!-- Executes go() function -->
<col ondrop="go()">
Form
onblurThe script to be run when the element loses focus.

 <!-- Executes go() function -->
<col onblur="go()">
onchangeThe script to be run when object changed and attempt to leave field.

 <!-- Executes go() function -->
<col onchange="go()">
oncontextmenuThe script to be run when a context menu is triggered.

 <!-- Executes go() function -->
<col oncontextmenu="go()">
onfocusThe script to be run when the element gets focus.

 <!-- Executes go() function -->
<col onfocus="go()">
oninputThe script to be run when an element gets user input.

 <!-- Executes go() function -->
<col oninput="go()">
oninvalidThe script to be run when an element is invalid.

 <!-- Executes go() function -->
<col oninvalid="go()">
onresetThe script to be run when a dragged element is being dropped.

 <!-- Executes go() function -->
<col onreset="go()">
onselectThe script to be run when some or all of the contents of an object are selected.

 <!-- Executes go() function -->
<col onselect="go()">
onsubmitThe script to be run when a form is submitted.

 <!-- Executes go() function -->
<col onsubmit="go()">
Keyboard
onkeydownThe script to be run when an element is in focus and keyboard key is pressed down.

 <!-- Executes go() function -->
<col onkeydown="go()">
onkeypressThe script to be run when an element is in focus and keyboard key is pressed down and released.

 <!-- Executes go() function -->
<col onkeypress="go()">
onkeyupThe script to be run when an element is in focus and keyboard key is released.

 <!-- Executes go() function -->
<col onkeyup="go()">
Media
onabortThe script code to be run on abort.

 <!-- Executes go() function -->
<col onabort="go()">
oncanplayThe script to be run when a file has buffered enough so it is ready to start playing.

 <!-- Executes go() function -->
<col oncanplay="go()">
oncanplaythroughThe script to be run when a file can be played all the way to the end without further need of buffering.

 <!-- Executes go() function -->
<col oncanplaythrough="go()">
oncuechangeThe script to be run when the cue changes when using the track element.

 <!-- Executes go() function -->
<col oncuechange="go()">
ondurationchangeThe script to be run when the length of the media is changed.

 <!-- Executes go() function -->
<col ondurationchange="go()">
onemptiedThe script to be run when a media resource element suddenly becomes empty, usually due to an error.

 <!-- Executes go() function -->
<col onemptied="go()">
onendedThe script to be run when the media has reach the end.

 <!-- Executes go() function -->
<col onended="go()">
onloadeddataThe script to be run when media data is loaded and playback can start.

 <!-- Executes go() function -->
<col onloadeddata="go()">
onloadedmetadataThe script to be run when metadata has been loaded.

 <!-- Executes go() function -->
<col onloadedmetadata="go()">
onloadstartThe script to be run whenthe media resource has started loading.

 <!-- Executes go() function -->
<col onloadstart="go()">
onpauseThe script to be run when the media resource has been paused.

 <!-- Executes go() function -->
<col onpause="go()">
onplayThe script to be run when the media resource starts playback.

 <!-- Executes go() function -->
<col onplay="go()">
onplayingThe script to be run when when playback has already begun.

 <!-- Executes go() function -->
<col onplaying="go()">
onprogressThe script to be run when the browser is fetching the media data.

 <!-- Executes go() function -->
<col onprogress="go()">
onratechangeThe script to be run when the playback rate changes.

 <!-- Executes go() function -->
<col onratechange="go()">
onseekedThe script to be run when the seeking attribute is set to false indicating that seeking has finished.

 <!-- Executes go() function -->
<col onseeked="go()">
onseekingThe script to be run when the seeking attribute is set to true indicating that seeking is currently active.

 <!-- Executes go() function -->
<col onseeking="go()">
onstalledThe script to be run when the browser is unable to continue fetching media data.

 <!-- Executes go() function -->
<col onstalled="go()">
onsuspendThe script to be run when media data has stopped before being completely loaded.

 <!-- Executes go() function -->
<col onsuspend="go()">
ontimeupdateThe script to be run when the media resources current playback position has changed.

 <!-- Executes go() function -->
<col ontimeupdate="go()">
onvolumechangeThe script to be run when the volume has changed or been muted.

 <!-- Executes go() function -->
<col onvolumechange="go()">
onwaitingThe script to be run when the media resource has paused but is expected to resume.

 <!-- Executes go() function -->
<col onwaiting="go()">
Mouse
onclickThe script to be run when when a mouse is clicked on an element.

 <!-- Executes go() function -->
<col onclick="go()">
ondblclickThe script to be run when a mouse is double clicked on an element.

 <!-- Executes go() function -->
<col ondblclick="go()">
onmousedownThe script to be run when he mouse button is pressed down while the cursor is over an element.

 <!-- Executes go() function -->
<col onmousedown="go()">
onmousemoveThe script to be run when the mouse button is moved.

 <!-- Executes go() function -->
<col onmousemove="go()">
onmouseoutThe script to be run when the mouse cursor moves off an element.

 <!-- Executes go() function -->
<col onmouseout="go()">>
onmouseoverThe script to be run when the mouse cursor moves over an element.

 <!-- Executes go() function -->
<col onmouseover="go()">
onmouseupThe script to be run when the mouse button is released while the cursor is over the element.

 <!-- Executes go() function -->
<col onmouseup="go()">
onwheelThe script to be run when the mouse wheel rolls up or down over an element.

 <!-- Executes go() function -->
<col onwheel="go()">
Scroll
onscrollThe script code to be run when the scrollbar of an element is being scrolled.

 <!-- Executes go() function -->
<col onscroll="go()"> 
Window - NONE

Relevant HTML Tutorials

HTML Lessons - Tables