Vertical block alignment for mobile view

I am trying to align a text block to the bottom of a section for mobile view only.

The block needs to sit at the top of the section on desktop and at the bottom of the section for mobile view.

Is there a CSS code to vertically align this block to the bottom?

I have the correct @media @mobile coding and block ID to target the block. However, I do not know the coding to use for vertical alignment

Any help would be appreciated.

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