At first I wanted to hide all the body and show only one image, but it seems that it's not possible since hiding the body with display:none would hide all of it's children. So I changed my code to just hiding the parameters I want to hide.

At Bottom line: I want to show the hidden content when I click on the content that is not hidden. 

Here is my HTML Code
[enter image description here](https://i.stack.imgur.com/w1wYH.png)
 js code is 
[enter image description here](https://i.stack.imgur.com/6Rskc.png)
And finally css code is [enter image description here](https://i.stack.imgur.com/qCcjA.png)

Even the code looks very simple but i'm struggling: when I click on the image, nothing happens.

I'm absolutely sorry if my question is not very well formulated, this is my first question on stackoverflow and I will be glad to make it more clear. 
Thank in advance.