Hi folks,
Not very technical so please bear with me.
How do I display rounded thumbnails on my home page?
Here’s a screenshot of what I’m going for, for reference:
(Markmanson.net)

I’m using the “WP Show Posts” plugin to generate a list of my posts on my home page.
And all my thumbnails are outputs of my featured images.
Someone mentioned to use the border-radius property.
Exactly how and where do I do that?
Customize > Additional CSS?
Editor > Style.css?
Sorry. Teaching myself this as I go.
Thank you!