Want to add smaller text to the site banner

Site URL: https://uppsala.universitetskyrkan.se/

Hi,

On the banner at the top, "UNIVERSITETSKYRKAN UPPSALA", I want to add smaller text underneath that says "För alla - oavsett tro eller inte tro"

I am a beginner at squarespace and haven't used CSS before. Apparently, it is not possible to do it within my template. 

Hi @Nathalie3

Paste this into your banner image description and see it if works. I'm not sure if the description box will read the HTML or not.

<p><strong>Universitetskyrkan Uppsala</strong></p>
<h3 style="color:#ffffff;text-transform:none;">För alla - oavsett tro eller inte tro</h3>

Let me know how you get on.