How to use "hidden" attribute with "display" property

Dear Monica,

Regarding your [article](https://meowni.ca/hidden.is.a.lie.html), if you have to use the HTML `hidden` attribute with the CSS `display` property together, this is the right way to do it:

```
  <style>
    div:not([hidden]) { display: flex; }
  </style>
  <div hidden>
      lol guess who's still hidden
      hint: it's this thing
  </div>
```