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CSS content Property

Topic: CSS3 Properties Reference« Prev|Next »

Description

The content CSS property is used in combination with the ::before and ::after pseudo-elements to generate content in an element.

The following table summarizes the usages context and the version history of this property.

Default value: normal
Applies to: The ::before and ::after pseudo-elements
Inherited: No
Animatable: No. See animatable properties.
Version: CSS 2, 3

Syntax

The syntax of the property is given with:

content normal | none | counter | string | url(url) | attr(attribute) | open-quote | close-quote | no-open-quote | no-close-quote | initial | inherit

The example below shows the content property in action.

  • h1::before {
  •     content: "Chapter: ";
  •     display: inline;
  • }
 

Note:The display CSS property controls whether the content generated using the content property is placed in a block-box or inline box.


Property Values

The following table describes the values of this property.

Value Description
normal It computes to none for the :before and :after pseudo-elements. This is default value.
none The pseudo-element is not generated.
counter This value sets the content as a counter. See the counter-reset and counter-increment property for more information.
string Inserts the specified string (text content).
url(url) The value of url() designates an external resource (such as an image). If the resource or image can't be displayed, it is either ignored or some placeholder shows up.
attr(attribute)

This function inserts the value of specified attribute before or after the selected element(s). If the subject of the selector does not have the specified attribute, an empty string will be inserted.

Note: The attribute names shouldn't be enclosed in quotes.

open-quote Insert the opening quotation mark. These values are replaced by the appropriate string from the quotes property.
close-quote Insert the closing quotation mark. These values are replaced by the appropriate string from the quotes property.
no-open-quote Do not display the opening quotation mark, but increments (decrements) the level of nesting for quotes.
no-close-quote Do not display the closing quotation mark, but increments (decrements) the level of nesting for quotes.
initial Sets this property to its default value.
inherit If specified, the associated element takes the computed value of its parent element content property.

Browser Compatibility

The content property is supported in all major modern browsers.

Browsers Icon

Basic Support—

  • Firefox 1+
  • Google Chrome 1+
  • Internet Explorer 8+
  • Apple Safari 1+
  • Opera 4+
 

Warning:Internet Explorer 7 and earlier versions do not support the content property. IE8 supports only if a valid <!DOCTYPE> is specified.


Further Reading

See tutorial on: CSS Pseudo Elements.

Related properties: counter-reset, counter-increment.

 
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