Used HTML, CSS and JS.

I had a hard time positioning the images and even more so trying to make the images be responsive. Used position - absolute and more for this. Also my I am repeating code in JS, which doesn't seem correct.

1. Can someone help me regarding positioning images, in general? Like, what's a decent way of doing it, provided it can be responsive?

2. Also, what could I have done better in my JS file. Thank you again, any help is good enough! Links to some better practices would be amazing too!