显示/隐藏OR切换具有相同类的多个元素，仅在单击时显示一个元素

Alright. So I'm going to try and explain this the best I can. I just don't understand how to use jQuery in HTML and a javascript answer would be most appreciated, but I'll take jQuery if you can give me HTML with it, and not just jQuery code.Alright. So I'm going to try and explain this t