Why am I getting this error in my style sheet?

I’m building a portfolio site with html and css in VS Code. I saved my and closed my index.html and style.css documents yesterday when I reached a stopping point. Today the style sheet is giving me errors for anything new I try to add into it. Why is this happening and how do I fix it? I am still pretty new to all this.

Please post your actual code instead of a picture. Thanks.

Add ; in end of line: 19
height: 22px;

transition: 0.5s;
from line: 21 delete border-bottom

Thanks! I stared at this for 30 min and didn’t notice it was missing.