JavaScript base Show/Hide effects click on Picture, div display, picture replacement, click on the changed picture, Div hidden

Town Field Poem:
The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.
Learn to have a small return to feed root, willing to cast a conscience blog. Sincere in this writing experience, willing to see the text to inspire.
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Code

<! DOCTYPE html>

　　
Result
Show1:
Show2:
The appearance of a picture corresponds to the presence of a red block, and the appearance of another image corresponds to the hidden red block.
A little mouse, picture replacement, red block has not shown. This effect is like the show/hide of some shopping sites.

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The essence of the blog, in the technical part, more in the town yard a poem. ide:vs2015; Browser: Firefox.
Html+css+js, strong, worth studying hard. The video tutorial of the Preach Intelligence podcast is my Learning Resource, recommended.
If there are any improvements to the blog post, please leave a comment and I'll think it over.

Note: I am an ordinary person working hard, this article is only for testing and reference use, can not be used for other purposes. The terms of use are accepted on your behalf when you refer to the content of your blog.
JavaScript base Show/Hide effects click on Picture, div display, picture replacement, click on the changed picture, Div hidden