Once you are as far as you can get styling your website with Customizer and Elementor, there is SiteOrigin CSS, an advanced CSS editor from SiteOrigin.
Enable SiteOrgin CSS in the plugins and then navigate to Appearance > Custom CSS to add final touches to your website’s style.
Note in particular the little eye icon above the top right of the editor. Click that to go into a visual mode where styling is as simple a clicking what you want to change and then selecting the options that work for you.
Read more on using SiteOrigin CSS…