angular 2 ngIf and CSS transition/animation

Question

I want a div to slide in from the right in angular 2 using css.

Answer 1

    trigger('slideIn', [
      state('*', style({ 'overflow-y': 'hidden' })),
      state('void', style({ 'overflow-y': 'hidden' })),
      transition('* => void', [
        style({ height: '*' }),
        animate(250, style({ height: 0 }))
      ]),
      transition('void => *', [
        style({ height: '0' }),
        animate(250, style({ height: '*' }))
      ])
    ])