Custom CSS, JS and HTML
Custom CSS
Go to Admin -> Appearance -> Custom CSS.
CSS you write here is added to every page of the site. Use it to adjust colors, fonts or spacing without touching the theme files, so an update of the theme does not erase your changes.

Custom JS
Go to Admin -> Appearance -> Custom JS.
JavaScript you write here is added to every page, for example a tracking or chat widget script.

Custom HTML
Go to Admin -> Appearance -> Custom HTML.
Three boxes add HTML to the Header of the page, the Body and the Footer. They accept plain HTML such as meta tags or a verification tag. The tags script, style and iframe are not allowed here: use Custom JS or Custom CSS for those.
