ionic-framework/ionic/components/nav-bar/nav-bar.scss

// Navbar
// --------------------------------------------------

$navbar-order: (
  back-button: 10,
  title: 20,
  primary: 30,
  secondary: 40
);


ion-navbar {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.navbar-inner {
  display: flex;
  width: 100%;
}

ion-navbar back-button.navbar-item {
  order: map-get($navbar-order, 'back-button');
}

.navbar-title {
  flex: 1;
  order: map-get($navbar-order, 'title');

  display: flex;
  align-items: center;
  margin: 0 0 2px;
}

.navbar-primary-item {
  order: map-get($navbar-order, 'primary');
}

.navbar-secondary-item {
  order: map-get($navbar-order, 'secondary');
}

ion-title {
  display: block;
  overflow: hidden;

  // used to notify JS when the title has been rendered
  animation-duration: 1ms;
  animation-name: nodeInserted;
}

.navbar-inner-title {
  width: 100%;
  padding: 0 15px;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.navbar .button {
  background: transparent;
  border: none;
}

.navbar-title-hide {
  opacity: 0;
}