Mobile Hamburger Menu

Hello,

I have come across code that removes the hamburger menu on mobile however it leaves me with no menu! How can I have a normal menu nav bar on mobile? I want it to appear in the grey bar on mobile. On mobile the grey bar is empty. If I remove the hamburger, I have no menu at all…
This is the code that removes it. But why is there no nav bar menu to replace it?

@media screen and (max-width: 768px) {
.navbar-toggle {
display:none !important;
}
nav.navbar-collapse {
display:block !important;
}
.responsive-logo {
float:left !important;
}
nav.navbar-collapse ul li {
width: auto !important; margin-left: 10px !important; border-bottom: none !important;
}
}