This code below will make all your buttons 200px in width. You can adjust the pixel width (px) to be a percentage (80%) or a vw (10vw) or any other value you want to use!

.sqs-block-button-element {width: 200px}


Ready to apply this to just the mobile version of your site?

Add the media query to make sure it only applies to screens smaller than 640px in width.
Pro tip: I like to use the value 80% for this code.

@media only screen and (max-width:640px) { .sqs-block-button-element {width: 80%}}