mobile-config-firefox/chrome/tabs_on_bottom_menubar_on_top_patch.css

/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/tabs_on_bottom_menubar_on_top_patch.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* Menubar on top patch - use with tabs_on_bottom.css */
/* Only really useful if menubar is ALWAYS visible */

:root:not([sizemode="fullscreen"]){ --uc-window-control-width: 0px !important }

:root{
   /* height if native titlebar is enabled, assumes empty menubar */
  --uc-menubar-height: 20px;
}
:root[tabsintitlebar]{
  /* height when native titlebar is disabled, more roomy so can fit buttons etc. */
  --uc-menubar-height: 29px; 
}

/* Since menubar is statically at top, remove fake drag-space that might be set by window_control_placeholder_support.css */
#nav-bar{ border-inline-width: 0 }

#navigator-toolbox{ padding-top: calc(var(--uc-menubar-height) + var(--uc-titlebar-padding,0px)) !important }
:root[sizemode="fullscreen"] #navigator-toolbox{ padding-top: 0px !important; }
#toolbar-menubar{
  position: fixed;
  display: flex;
  top: var(--uc-titlebar-padding,0px);
  height: var(--uc-menubar-height);
  width: 100%;
  overflow: hidden;
}

#toolbar-menubar > .titlebar-buttonbox-container{ height: 100%; order: 100; }

#toolbar-menubar > [flex]{ flex-grow: 100; }
#toolbar-menubar > spacer[flex]{
  order: 99;
  flex-grow: 1;
  min-width: var(--uc-window-drag-space-post,20px);
}

#toolbar-menubar .titlebar-button{ padding: 2px 17px !important;  }

#toolbar-menubar .toolbarbutton-1 { --toolbarbutton-inner-padding: 3px }