How can I use flexbox in my case?

Question

css

Please, show me with an example how I can implement such an option.

Do I need to take each line in a separate flex container, roughly speaking? Or is it all done at once and flex allows you to arrange blocks in this way?
I had no business with flex at all, this is my first acquaintance and I need it urgently: Thank you!

Answer 1

You can do this, naturally substitute your sizes:

Answer 2

each line is a flex container

Answer 3

both options
, depending on the details, one or the other option may be preferable,
but in your example, it makes no difference
the price of the issue - plus / minus a line of code

Answer 4

https://wp-kama.ru/id_8045/flex-v-css.html
For the future ..