I'm very new to child themes and need some advice on editing my twenty twelve child theme in style.css. My child theme is active so I managed to do the basics well. But when it comes to editing the main menu or other stuff, it doesn't work. I am also using notepad++ and FileZilla to make these changes. When I upload a change I noticed it appears on my child theme in editor but makes no changes. Also in case it helps, I made the child theme after I created my website, after realizing it's one of most important things to do when you need to make changes to your website. Am I using the coding incorrectly. Or is there something else Ive missed. my website is http://www.tumainitarot.com/
I would appreciate some advice on what to do next.