Angular 4+ Renderer2 example

RendererSampleComponent.ts

import { Component,Renderer2 } from '@angular/core';  
  
@Component({  
    selector:'app-root',  
    template:``    
})  
export class AppComponent{  
    value=true;  
    constructor(private renderer:Renderer2){  
  
    }  
    onChangeBackground(element:HTMLElement){  
        this.renderer.setStyle(element,'background-color','blue');  
    }  
}