@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

* {
    font-size:12px;
}

/*
#sidebar {
    min-width:20em !important;
    max-width:20em !important;
    border-right:1px solid rgba(30,30,30) !important;
}

#sidebar-header:nth-last-child(2) > *:last-child {
    visibility: collapse;
}

#sidebar-splitter {
    visibility: collapse;
}

#toolbar-menubar[inactive="true"] + #TabsToolbar {
    visibility: collapse !important;
}

#sidebar-box[sidebarcommand="tabcenter-reborn_ariasuni-sidebar-action"] #sidebar-header { visibility: collapse !important; }
#sidebar-box[sidebarcommand="_3c078156-979c-498b-8990-85f7987dd929_-sidebar-action"] #sidebar-header { visibility: collapse !important; }
*/

.titlebar-buttonbox-container{ display: none; }
#vertical-spacer { display: none; }
#tabbrowser-tabs[orient="vertical"] .tab-background {
    border-radius: var(--border-radius-small) !important;
}
hbox:has(> #tabs-newtab-button) {
    display: none;
}
#sidebar-main .tools-and-extensions {
    justify-content: space-around !important;
}