Button Size On Mobile Kalles Theme

[Bethchan56]

Hello,

I am trying to change the size of the mobile buttons on these two banners to be similar to the one.

My banner:

i need to make it wider across the screen

Be similar to this:

website：https://greatspeedsports.myshopify.com/ password:2023

[Absworkoutstimu]

I require assistance with this. How can I set the checkbox for accepting terms and conditions at checkout?