How can I add three lines of text to the Portfolio Grid overlay?

Site URL: https://www.buch-grafik.dk/work

Hey

I want to have 3 lines for each project. How do I do it? 

Example - 

Blinding Lights 12”

The Weeknd single

Vinyl re-design

I hope someone can help me 🙂

See #3 code in this post. https://forum.squarespace.com/topic/216655-share-portfolio-page-code-71/

Or add this to Design > Custom CSS

/* Multi subtitle */
h3.portfolio-title:after {
    font-size: 20px;
    color: black;
    display: block;
    white-space: pre-wrap;
}
a.grid-item[href="/work/chotto-motto-pep7h"] h3:after {
    content: "subtitle 01 \A second subtitle \A third subtitle ";
}
a.grid-item[href="/work/american-portraiture-2ratt"] h3:after {
    content: "subtitle 02 \A second subtitle \A third subtitle 2";
}

Do similar for other items