User blog comment:GreenSister/Just asking/@comment-24947676-20160109025133/@comment-2248043-20160109091128

I think you have to study Source Mode a bit more before handling that. You could do it in Visual but it's not as good. Then, there's also the fact that you might be using Classic Editor for your own reasons. Still, it's your choice, so: I think that should get you where you need to go.
 * Visual Editor help.
 * Classic Editor help.
 * Wikitext.