Are there 1.5V AAA batteries?

Question

Batteries

I looked around the shops, everywhere the same thing, the batteries are only 1.2 volts, but you need 1.5v.

Answer 1

I advise you to look for batteries on aliexpress by the word NiZn - they have 1.6V power, they go very well in navigators, camera flashes
https://ru.aliexpress.com/wholesale?catId=0&initia...

Answer 2

1) in the link of the box you hover over - store in the data parameter (for example data-src) the full link to the image.
2) when a person hovered - you transfer this data-src to the picture as src.
all! 2 lines of code.
https://jsfiddle.net/zc041gbp/1/
and then you have to do tabs. so that all 4 pictures are already located. and there you already change the tabs as you like through opacity, for example.

Answer 3

Learning to think correctly is easiest, for example, by stuffing cones. It is difficult to imagine such examples when a person does not make mistakes on the way of his formation.
Here you will put your code into production, in a year you will add over999 more lines. And then you get bugs. You look at what you wrote a year ago, spend an indecent amount of time solving a simple problem, cross yourself and try to rewrite it to achieve more maintainable code. Provided, of course, that you will improve and not deceive yourself first of all.