HTML5 Reference

HTML <sup> tag

Definition

The <summary> tag is used to define a visible header within the <details> tag.

The summary information can be clicked on to show/hide it.

The <summary> tag must be the first child element within the <details> tag.

The <summary> tag was introduced in HTML5.

Example


<details>
  <summary>Server2Client Website</summary>
    <p>Tutorials on client and server programming.</p>
</details>
<details open>
  <summary>HTML5</summary>
    <p>Latest Specification.</p>
</details>
Server2Client Website

Tutorials on client and server programming.

HTML5

Latest Specification.

Attributes

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


<summary> Specific Attributes
Attribute Value Description Example
There are no required or optional attributes specific to the <summary> tag.
<summary> 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.

<summary class="name">Summary text</code>
idSpecifies a unique id for the element allowing you to apply the style of the predefined id to the content.

<summary id="name">Summary text</code>
styleSpecifies an inline style for the element allowing you to apply the style to the contentt.

<summary style="color:red;">Summary text</code>
titleSpecifies an inline style for the element allowing you to apply the style to the content.

<summary title="Content info">Summary text</code>
Keyboard
accesskeySpecifies a keyboard shortcut to associate with the element.

<summary accesskey="a">Summary text</code>
tabindexSpecifies a tab order for the element.

<summary tabindex="1">Summary text</code>
Language
dirSpecifies the directional flow of the content.

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

<summary lang="en">Summary text</code>
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. -->
<summary spellcheck="true">Summary text</code> 
translateSpecifies an inline style for the element allowing you to apply the style to the content.

<!-- Valid values yes and no. -->
<!-- Default yes. -->
<summary translate="no">Summary text</code> 
Miscellaneous
contenteditableSpecifies whether the content of the element is editable.

<!-- Valid values true and false. -->
<!-- Default inherited. -->
<summary contenteditable="true">Summary text</code> 
draggableSpecifies whether the element is draggable.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

 <!-- Executes go() function -->
<summary oncontextmenu="go()">Summary text</code>
onfocusThe script to be run when the element gets focus.

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

 <!-- Executes go() function -->
<summary oninput="go()">Summary text</code>
oninvalidThe script to be run when an element is invalid.

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

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

 <!-- Executes go() function -->
<summary onselect="go()">Summary text</code>
onsubmitThe script to be run when a form is submitted.

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

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

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

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

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

 <!-- Executes go() function -->
<summary oncanplay="go()">Summary text</code>
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 -->
<summary oncanplaythrough="go()">Summary text</code>
oncuechangeThe script to be run when the cue changes when using the track element.

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

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

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

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

 <!-- Executes go() function -->
<summary onloadeddata="go()">Summary text</code>
onloadedmetadataThe script to be run when metadata has been loaded.

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

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

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

 <!-- Executes go() function -->
<summary onplay="go()">Summary text</code>
onplayingThe script to be run when when playback has already begun.

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

 <!-- Executes go() function -->
<summary onprogress="go()">Summary text</code>
onratechangeThe script to be run when the playback rate changes.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

 <!-- Executes go() function -->
<summary onscroll="go()">Summary text</code> 
Window - NONE

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Widgets / Miscellaneous