bandsintown embed button - how to resize

Site URL: https://www.megankeely.com/

I'm using the Bandintown integration (in a block) to feed by upcoming shows straight from Bandsintown to my Squarespace website.  It works great, but for some reason the ticket button is tiny.  I believe it is a 'Primary Button' because I change the primary button font and the ticket button instantly changed.  I understand the button size is determined by the font size, but I can't figure out how to update the font size (for this block or all buttons) to make this button larger.  Any help is greatly appreciated.  Thanks!

Add to Design > Custom CSS

/* bandsintown button */
.sqs-tourdates__actions a {
    font-size: 30px !important;
}