No problems … centring depends on what you mean 🙂
For example this CSS will centre the logo in the space around it:
#mobile-header .site-logo {
margin-left: auto;
margin-right: auto;
}
If you want it in the center of the mobile header then you would need to do this:
#mobile-header {
position: relative;
}
#mobile-header .menu-toggle {
margin-left: auto;
}
#mobile-header .site-logo {
position: absolute;
left: 50%;
margin-left: 0;
transform: translatex(-50%)
}
#mobile-header .site-logo img {
height: auto;
}
But you will have to accept the logo will resize to fit the space available. Otherwise its going overlap the Menu Toggle.