Add the following code to css section in divi theme options:
@media (max-width: 980px) {
.et_header_style_centered #logo {
max-height: 120px;
margin-top: -10px;
Source: https://www.elegantthemes.com/forum/viewtopic.php?f=187&t=845967&hilit=increase+mobile+logo+size&p=4640284#p4640284
@media only screen and (max-width: 980px) {
#logo {
height: 100% !important;
max-height: 100% !important;
width: 50% !important;
max-width: 50% !important;
}
}
Source: https://divisoup.com/quick-snack-make-the-logo-bigger-on-mobiles-and-tablets/
