header-top in mobile version

Hello, I went through this forum but I did not find a working solution.
I would like that the header-top containing social menu would be visible also on mobile version, but I failed.

I add this code in additional css

@media screen and (max-width: 480px) {
.header-top .left-content .menu li {
display: block; !important
}
}
.med-content {
padding-top: 8px; !important
font-size: 13px;
width: 30px
}

But the header-top still disappears below 480px.
Any ideas?
Many thanks

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