What CSS Code Can I Use to Style the Sidebar?

Hello Envato community!

I’m currently working on customizing the sidebar of my website and I’m looking for some guidance on CSS code for styling purposes. I want to enhance the visual appeal of the sidebar and make it more cohesive with the overall design of my site. Specifically, I’m interested in:

  1. Adjusting the widgets in the sidebar
  2. Including a Call to Action Button
  3. Adding enticing colors and shadow effects.

If anyone has experience with sidebar customization or can provide CSS snippets to achieve these effects, I would greatly appreciate your input! Feel free to share your expertise or recommend any resources that could be helpful in this context.