public/src/app/app.component.scss

:host {
  display: flex;
  overflow: auto;
  height: 100vh;

  .container {
    height: 100%;
  }

  main {
    flex: 1;
    position: relative;
  }

  /deep/ router-outlet ~ * {
    position: absolute;
    width: 100%;
    // height: 100%;
  }
}