当我使用切换点击此图片时，我的文字没有出现和消失

I'm practicing my javascript with others trying to basically make my text underneath my picture appear and disappear when I click on the picture. I've been using toggle from JQuery but am not having any luck in getting my text to disappear or appear. What am I missing? Or what should I add! Thanks lots...and here comes the code:I'm practicing my javascript with others trying