How to align and center the rubber block?

Hi!
Example https://codepen.io/Cloudst1/pen/mWZoNQ
Can't make the right unit with the price. An example of how it should be prntscr.com/eu3qd9

How to make the right column stretch to the full height of the parent block? and with it the contents of the right column was centered.
Fixed size, neither the parent nor the speakers are not.

I would like to know how to solve this task with the use of flake without
June 27th 19 at 15:04
2 answers
June 27th 19 at 15:06
Solution
I would like to know how to solve this task with the use of flake without

flexbox.help sort it out and forget about the problems of this kind.
June 27th 19 at 15:08
To stop using float

To use the display in a flex table or inline-block for the corresponding elements

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