import { Component, Renderer2 } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.scss'], }) export class AppComponent { constructor(private renderer: Renderer2) {} ngOnInit() { // Use Renderer2 to append an element to the html element const newElement = this.renderer.createElement('html'); this.renderer.appendChild(document.body, newElement); } title = 'synto'; }