:root {
  --ng-transition-duration-instant: 0ms;
  --ng-transition-duration-ultra-fast: 50ms;        
  --ng-transition-duration-fast: 100ms;
  --ng-transition-duration-default: 250ms;        
  --ng-transition-duration-medium: 300ms;
  --ng-transition-duration-slow: 500ms;
  --ng-transition-duration-slower: 700ms;
  --ng-transition-duration-long: 1000ms;           
}