Current directory: [site root]/wp-includes/blocks/pullquote/

Back Editing: editor.css

.wp-block-pullquote.is-style-solid-color blockquote p{ font-size:32px; } .wp-block-pullquote.is-style-solid-color .wp-block-pullquote__citation{ font-style:normal; text-transform:none; } .wp-block-pullquote__citation{ color:inherit; }

Save