logseq/src/main/frontend/components/window_controls.css

.window-controls {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 10;

  .button {
    -webkit-app-region: no-drag;
    background: transparent;
    border-radius: 0;
    width: 48px;
    height: 48px;
  }
}