CSS Pseudo Content Data

CSS Pseudo Content Data refers to the content that can be generated and inserted into an element using the ::before and ::after pseudo-elements. This feature provides a powerful tool for web developers to add decorative or functional content to HTML elements without actually modifying the HTML code.

Syntax

The syntax for adding content using the ::before and ::after pseudo-elements is as follows:

.selector::before {
  content: "some text here";
}

.selector::after {
  content: "more text here";
}

Note that the content property is used to add the desired text, image or other content to the element.

Types of Content

Text Content

The most common use of CSS Pseudo Content Data is to add text content to HTML elements. This is achieved by setting the content property to a string of text, surrounded by quotes.

.selector::before {
  content: "Stylish Headline";
}

.selector::after {
  content: "Follow us on social media";
}

Image Content

In addition to text content, images can also be added to elements using Pseudo Content Data. This is done by specifying the path of the image file in the content property.

.selector::before {
  content: url("path/to/image.jpg");
}

Attribute Content

Pseudo Content Data can also be used to display the value of an attribute of an element. This is achieved by using the attr() function in the content property.

<a href="#" data-tooltip="Click me for a surprise!" class="selector">Link</a>

.selector::before {
  content: attr(data-tooltip);
}

Conclusion

CSS Pseudo Content Data is a powerful feature that enables web developers to add decorative or functional content to HTML elements using the ::before and ::after pseudo-elements. This feature can be used to add text, image or attribute content to elements, providing greater flexibility in the design and functionality of web pages.