# Where to add custom CSS?

Every Divi page has a custom CSS section in the settings.

1. Open a page with the Divi Builder
2. Go to Advanced settings as shown in the image below
3. Add CSS

![](https://2665944738-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FDSEWkls0MvMs9Ywmmk3W%2Fuploads%2F2YIVFQ2X58jfBA3WyWuU%2Fimage.png?alt=media\&token=6cc4d424-aec4-4c62-9ab0-3ec266d7526d)

## CSS not working?

Try adding !important behind it.

```
.df-activebutton {
     filter: brightness(50%) !important;
}
```