The HTML Definition Tag used to define the term , that is specified in the context of the definition phrase or sentence. If a term is contained within the element then browsers understand that nearby text contains a definition of the term.
The tag, the
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Syntax:
The definition tag contains both the starting tag and ending tag. The content is written between these two tags.
<dfn> Definition term </dfn> - Definition.
HTML Tag Characteristics:
th, td{ padding: 20px; }
| HTML tag | Specifies a definition term |
| Content categories | Flow content, phrasing content, palpable content. |
| Permitted content | Phrasing content. But not element must be a descendant. |
| Tag omission | None, both opening and closing tags are mandatory. |
| Permitted parents | Any HTML element that accepts phrasing content. |
| Implicit ARIA role | term |
| Permitted ARIA roles | Any |
| DOM interface | HTML Element |
Sample of the HTML Tag:
<!DOCTYPE html>
<html>
<head>
<title>HTML <dfn> Tag</title>
</head>
<body>
<h3>Example for Definition tag</h3>
<p>
<dfn>HTML</dfn> - It is the technology used to create web pages
</p>
</body>
</html>
Result:
Download Sample File:
- The term inside the tag can be any of the following:
Example of HTML tag with a “title” Attribute:
<!DOCTYPE html>
<html>
<head>
<title>HTML <dfn> Tag</title>
</head>
<body>
<h3>HTML <dfn> Tag with "title" attribute</h3>
<p>
<dfn title="HyperText Markup Language">HTML</dfn> - It is the technology used to create web pages.
</p>
</body>
</html>
Result:
Example of HTML tag with the tag:
<!DOCTYPE html>
<html>
<head>
<title>HTML <dfn> Tag</title>
</head>
<body>
<h3>HTML <dfn> Tag with <abbr> tag</h3>
<p>
<dfn><abbr title="HyperText Markup Language">HTML</abbr></dfn> - It is the technology used to create web pages.
</p>
</body>
</html>
Result:
Example of HTML Tag with the “id” Attribute:
<!DOCTYPE html>
<html>
<head>
<title>HTML <dfn> Tag</title>
</head>
<body>
<h3>HTML <dfn> Tag with "id" attribute</h3>
<p><dfn id="html-def">HTML</dfn> is the standard markup language for creating web pages.</p>
<p>This is some text...</p>
<p>This is some text...</p>
<p>This is some text...</p>
<p>This is some text...</p>
<p>This is some text...</p>
<p>This is some text...</p>
<p>Learn <a href="#html-def">HTML</a> now.</p>
</body>
</html>
Result:
Attributes:
The Definition tag supports the global attributes and the event attributes in HTML.
th, td{ padding: 20px; }
| Attribute | Value | Description |
|---|---|---|
| title | This attribute will specify the abbreviation of the definition term when hovering the mouse over the term. |
Styling Methods for Tag:
You can use the following properties to style an HTML <dfn> Definition tag.
Properties to style the visual weight/emphasis/size of the text in tag:
- CSS font-style – This CSS property helps to set the font style of the text such as normal, italic, oblique, initial, inherit.
- CSS font-family – This CSS property specifies a prioritized list of one or more font family names or generic family names for the selected element.
- CSS font-size – This CSS property will help to set the size of the font.
- CSS font-weight – This CSS property used to define whether the font should be bold or thick.
- CSS text-transform – This CSS property will control the text case and capitalization.
- CSS test-decoration – This CSS property specifies the decoration added to text such as text-decoration-line , text-decoration-color , text-decoration- style.
Styles to coloring the text in Tag:
- CSS color – This CSS property will specify the color of the text content and decorations.
- CSS background-color – This CSS property helps to set the background color of an element.
Text layout styles for Tag:
- CSS text-indent – This CSS property is used to specify the indentation of the first line in a text block.
- *CSS text-overflow * – This CSS property helps to describe how overflowed content that is not displayed should be signaled to the user.
- CSS white-space – This CSS property describes how white-space inside an element is handled.
- CSS word-break – This CSS property decides where the lines should be broken.
Other Properties for Tag:
- CSS text-shadow – This CSS property helps to add the shadow to text.
- CSS text-align-last – This CSS property will set the alignment of the last line of the text.
- CSS line-height – This CSS property defines the height of a line.
- CSS letter-spacing – This CSS property helps to decide the spaces between letters/characters in a text.
- CSS word-spacing – This CSS property specifies the spacing between every word.
Browser Support:
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