@mixin fullscreen() {
  box-sizing: border-box;
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  max-height: 100vh;
  overflow: hidden;
}

@mixin ngx-present() {
  html, body, ngx-present-container, app-root {
    margin: 0;
    padding: 0;
    @include fullscreen();
  }
}