The additonal CSS was as followed:
#et-info-fax:before {
content: “\e0fa”;
font-family:ETmodules;
padding-right: 2px;
}
#et-info-phone:before {
padding-right: 2px;
}
@media (max-width: 960px) {
.et_header_style_left #logo {
max-height: 100%;
width: 80px;
max-width: 100%;
}
}
This was a child of the DIVI theme if that matters.