I understood I've to work on CSS to custom theme appearance. I just wonder:
- where's exact location for child.css ? mine is /wp-content/themes/studio-child/_inc/css/child.css
- why can't I make this file writable by WP editor ? (I checked many CHMOD combinations on my FTP, no success = "You need to make this file writable before you can save your changes. blabla" ).
- if I want to change pages' background pictures I've to find correct CSS line with Firebug then modify it directly ?