Thanks for the link! It wasn’t quite what I was looking for (I wanted to add the icons to the bottom of the mobile menu itself, not to the menu bar). But I figured it out. In case it helps anyone, this worked for me:
@media (max-width: 768px) {
#mobile-menu .facebook-icon {
display: inline-flex;
justify-content: flex-end;
padding-right: 5px;
width: 50%;
}
#mobile-menu .linkedin-icon {
display: inline-flex;
justify-content: flex-start;
padding-left: 5px;
width: 49%;
}
}