As a few of you know, I have been spending a good part of this year writing a book for O’Reilly called “CSS Secrets” (preorder here!). I wanted to include a “secret” about the various uses of the resize property, as it’s one of my favorite underdogs, since it rarely gets any love. However, just mentioning the typical use case of improving the UX of text fields didn’t feel like enough of a secret at all. The whole purpose of the book is to get authors to think outside the box about what’s possible with CSS, not to recite widely known applications of CSS features. So I started brainstorming: What else could we do with it?