Hi Steven Bloomfield,
Though logo and advertisement section is bigger, you can upload the logo and advertisement of any size. If you really need samller sizes then please go to ‘Appearance > Customize > Additional CSS’ and paste the Below Custom CSS code.
.navbar-head .col-lg-4,
.navbar-ad-section {
-ms-flex: inherit;
flex: inherit;
}
.navbar-head .col-lg-4 {
max-width: 200px;
}
.navbar-ad-section {
max-width: 500px;
}
Thanks
.
.