3 columns on mobile

Hello, i need something quite simple…
I need a text with 2 buttons on itys side to appear in a mobile.
I0m using Zenler that has some limited capabilities and i know that the only way to solve my problem is thru CSS.

The object that I created in zenlet has this code at the end →

<style class="mobile-only-style">@media only screen and (max-width: 480px){[data-uniqid="1712177204483"] { padding-top: 0px !important; padding-bottom:0px !important; }}</style>

Please, HELP!