Left-align in modules-center: is that possible?

[vp1981]

Hello.

Correct me if I'm wrong, but currently there is no way to left-align content in modules-center, is that right?

Consider the following snippet from my config:

  "modules-left": [
    "hyprland/workspaces"
  ],
  "modules-center": [
    "hyprland/window"
  ],
  "modules-right": [
    "hyprland/submap",
    "custom/ws-layout",
    "tray",
    "wireplumber",
    "cpu",
    "memory",
    "power-profiles-daemon",
    "idle_inhibitor",
    "temperature",
    "hyprland/language",
    "clock"
  ],
  //...
  "hyprland/window": {
    "max-length": 200,
    "separate-outputs": true
  },
  //...

I want the window title to be left-aligned, but GTK CSS doesn't provide alignment properties.

[Kxrma47]

Yes—modules-center is a dedicated GTK center widget while fixed-center is true, so CSS cannot turn that container into the left block. The simplest fix is to place the window module in modules-left:

"modules-left": [
  "hyprland/workspaces",
  "hyprland/window"
]

If you need to retain the center group, try "fixed-center": false with "expand-center": true; Waybar then packs that group into the remaining space instead of installing it as the fixed center widget. The behavior is visible in bar.cpp and documented under bar configuration.

[vp1981]

Thanks! I somehow figured that out myself, but forgot to report my findings and close the discussion.