/* https://github.com/piroor/treestyletab/wiki/Code-snippets-for-custom-style-rules#hide-horizontal-tabs-at-the-top-of-the-window-1349-1672-2147
 */
#main-window[tabsintitlebar="true"]:not([extradragspace="true"]) #TabsToolbar > .toolbar-items {
  opacity: 0;
  pointer-events: none;
}
#main-window:not([tabsintitlebar="true"]) #TabsToolbar {
    visibility: collapse !important;
}

/* https://github.com/piroor/treestyletab/wiki/Code-snippets-for-custom-style-rules#hide-the-tree-style-tab-header-at-the-top-of-the-sidebar
 */
#sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
  display: none;
}

/* https://github.com/piroor/treestyletab/wiki/Code-snippets-for-custom-style-rules#reduce-minimum-width-of-the-sidebar-1373
 */
#sidebar {
  min-width: 100px !important;
}

/* https://github.com/piroor/treestyletab/wiki/Code-snippets-for-custom-style-rules#auto-hide-sidebar-when-fullscreen-1548
 */
#main-window[inFullscreen] #sidebar-box,
#main-window[inFullscreen] #sidebar-splitter {
  display: none !important;
  width: 0px !important;
}