[i-excel] CSS Links pages and posts only NOT menu or buttons

Can you please tell me what CSS to input in the custom layout area for the i-excel theme that will change the links for pages and posts text area (not the menu or the buttons link text.)

When I use
a {
color: #333333 !important;
text-decoration: underline;
}

Above changes all the links, not just the pages and posts text.

The site is https://cnorris4cd1.org/

Really enjoy this theme! Thanks for the use!