Update custom-css.mdx (#19933)

Author: bjesus

src/content/docs/zaraz/consent-management/custom-css.mdx

@@ -11,3 +11,5 @@ You can add custom CSS to the Zaraz Consent Management Platform, to make the con
 1. Log in to the [Cloudflare dashboard](https://dash.cloudflare.com/login), and select your account and domain.
 2. Go to **Zaraz** > **Consent**.
 3. Find the **Custom CSS** section, and add your custom CSS code as you would on any other HTML editor.
+
+You can experiment with your CSS code and find ready-to-use example designs at the [Zaraz Consent Designs](https://consent-designs.zaraz.com/) website.