I am trying to use the vertical divider component provided by Angular material, but it is not showing up for some reason. Can someone help me debug this? https://stackblitz.com/edit/stackblitz-starters-dyp1rz?file=src%2Fmain.ts. I am following this doc https://material.angular.io/components/divider/overview
An angular-cli project based on @angular/animations, @angular/common, @angular/compiler, @angular/core, @angular/forms, @angular/platform-browser, @angular/platform-browser-dynamic, @angular/router, core-js, rxjs, tslib and zone.js