Headings breaking across lines?

Hey all, hope I’m approaching this correctly.

I’ve just changed my theme to Go and am finding that in certain instances my headers are breaking across lines in the middle of the word. As an example from the page I shared, the header “My Approach” – which I’d expect to be broken across two lines (one for each word) based on its column setup – is appearing across three lines like

My
Approa
ch

I tried browsing this forum here and attempted to add this code to both the Custom CSS Editor and the style.css file, to no avail:

h1, h2, h3, h4, h5, h6 {
word-break: initial;

Any suggestions on what I could do to fix this so breaks are only inserted at the end of a word?

Thanks in advance!

The page I need help with: [log in to see the link]