Tutorial
The CSS attr() Function
While we believe that this content benefits our community, we have not yet thoroughly reviewed it. If you have any suggestions for improvements, please let us know by clicking the “report an issue“ button at the bottom of the tutorial.
attr() is a CSS function that returns the value of a property. That means that you can define content in your html markup using any custom property and then fetch the value using attr(). It only works on the content property at the moment, but support for other properties are currently in the experimental stage.
An example should help explain. First, the HTML markup:
<span data-tooltip="Cascading Style Sheets">CSS</span>
And now the CSS:
[data-tooltip]::before {
content: attr(data-tooltip);
}
And with this you can create custom tooltips in pure CSS.
Browser Support
👉 Browser info is for properties other than content. attr() works across all browsers for content.
Can I Use css3-attr? Data on support for the css3-attr feature across the major browsers from caniuse.com.
Thanks for learning with the DigitalOcean Community. Check out our offerings for compute, storage, networking, and managed databases.
author
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
Get our biweekly newsletter
Sign up for Infrastructure as a Newsletter.
Hollie's Hub for Good
Working on improving health and education, reducing inequality, and spurring economic growth? We'd like to help.
Become a contributor
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
