Tags about stand alone and container tag. In container tags, it cannot stand w/o a pair or companion, like you Ma'am, we cannot understand our lesson w/o you at our side discussing and explaining each topic.
I didn't have problem on the topics but on the computer that we are using. Sometimes it sticked, sometimes it doesn't work. But that's normal for it use many years ago.
Moving on, I will do my best and be patience.
