diff --git a/guide/english/css/tutorials/introduction-to-css/index.md b/guide/english/css/tutorials/introduction-to-css/index.md index aea4c704e2..ed65f22037 100644 --- a/guide/english/css/tutorials/introduction-to-css/index.md +++ b/guide/english/css/tutorials/introduction-to-css/index.md @@ -59,3 +59,4 @@ a { * [W3Schools](https://www.w3schools.com/css/css_intro.asp) * [CSS-Tricks Almanac](https://css-tricks.com/almanac/) * [Sitepoint](https://www.sitepoint.com/html-css/?ref_source=github) +* [MDN](https://developer.mozilla.org/en-US/docs/Learn/CSS/Introduction_to_CSS)