WP File Manager

Name	Action
..
block.json	Edit
editor-rtl.css	Edit
editor-rtl.min.css	Edit
editor.css	Edit
editor.min.css	Edit
style-rtl.css	Edit
style-rtl.min.css	Edit
style.css	Edit
style.min.css	Edit
theme-rtl.css	Edit
theme-rtl.min.css	Edit
theme.css	Edit
theme.min.css	Edit

Editing: theme.css

.wp-block-pullquote{ border-bottom:4px solid; border-top:4px solid; color:currentColor; margin-bottom:1.75em; } .wp-block-pullquote cite,.wp-block-pullquote footer,.wp-block-pullquote__citation{ color:currentColor; font-size:.8125em; font-style:normal; text-transform:uppercase; }