How to enlarge and border text on an image header for a sale announcement?

Hello, am trying to add text to image header to announce an upcoming sale. How do i make these words bigger, and have a border?

Hello @PESHY

Could you please share your store url ( with pass if your store password is enabled ) then I can see and suggest something for you?
Kind & Best regards!
GemPages Support Team

@PESHY

Sorry you are facing this issue, it would be my pleasure to help you.

Welcome to the Shopify community! :blush:
Thanks for your good question.

Please share your site URL,
I will check out the issue and provide you a solution here.

url address: www.kayammah.com

url: www.kayammah.com

@PESHY

yes, please try this code

  1. Go to Online Store->Theme->Edit code
  2. Asset->/theme.css ->paste below code at the bottom of the file.
@media screen and (min-width: 641px) {
.SectionHeader__SubHeading+.SectionHeader__Heading {font-size: 30px !important;}
}