wp_enqueue_style and wp_enqueue_script problem non-root dir · Issue #278 · roots/sage · GitHub
Correctly enqueue scripts and css in WordPress
ADDING CSS, JQUERY, BOOTSTRAP, SLICK IN WORDPRESS or ADDING CSS AND JAVASCRIPT IN WORDPRESS wp_enqueue_style(), wp_register_script(), wp_register_style(); | armantutorial
WordPress functions to add internal and external stylesheet | WebAppsGuides