Change the icon size - material font

Hi everyone I added material fonts icons in the section below the hero, via embedded code:

<i class="material-symbols-rounded">

The icons only show in the published website but not in the designer, which is fine with me.

However when I want to change the size of the icons nothing happens. I tried the topography size and height, the height and width of the embedded code element, but nothing changes.

Could you please tell me how to change the size of the icons?

Here the designer view: Webflow - Carwi

Here the published site: