V0.1h Bootstrapeinbindung als CSS für die navbar

package-lock.json

       "integrity": "sha1-aN/1++YMUes3cl6p4+0xDcwed24=",
       "dev": true
     },
+    "bootstrap": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.5.0.tgz",
+      "integrity": "sha512-Z93QoXvodoVslA+PWNdk23Hze4RBYIkpb5h8I2HY2Tu2h7A0LpAgLcyrhrSUyo2/Oxm2l1fRZPs1e5hnxnliXA=="
+    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",

package.json

     "@angular/platform-browser": "~9.1.7",
     "@angular/platform-browser-dynamic": "~9.1.7",
     "@angular/router": "~9.1.7",
+    "bootstrap": "^4.5.0",
     "rxjs": "~6.5.4",
     "tslib": "^1.10.0",
     "zone.js": "~0.10.2"

src/app/app.component.ts

-import {Component, OnInit} from '@angular/core';
+import {Component} from '@angular/core';
 @Component({
   selector: 'app-root',
   templateUrl: 'app.component.html'
 })
-export class AppComponent implements OnInit {
+export class AppComponent {
 
   constructor(){
 

src/styles.css

+@import '~bootstrap/dist/css/bootstrap.css';
 body {
   font-family: Helvetica;
   padding-left: 15px;