Need columns with different width oder table without frame (in text block)

Hello support-team,
i have a text-block and would need either two columns with different width or a table with two rows (also different size – size dependent on content) without any frames or background.
I´m having on this page a curriculum vitae with dates on the left and some text on the right. It should also be responsive, so that the text on the right on small screens is changing into a second line below (see example).

example:
2005 – 2010 Influencer in Austria with a lot of followers

2005 – 2010 Influencer in Austria
with a lot of followers
Thanks for your help!
Johannes