right now I solve it with a kind of dirty solution. A „real“ solution would be great! Here's what I've done: I put some Custom CSS for Mobile Version;
body {
padding-top: 0;
}
.navbar,
.burger,
.mobile-title {
display: none !important;
}
.sitetitle {
display: block;
position: fixed;
bottom: auto;
right: auto;
left: 50%;
transform: translateX(-50%);
}
.tagline {
margin-top: 5px;
}