Angular Material Style Class not working

Question

I'm using Angular Material to add Date Picker to my app. For some reason the angular material is not applying the original angular material styles.

How it displays in my app:

How it SHOULD display:

What I have done:

npm install --save @angular/material @angular/cdk

npm install --save @angular/animations

// Added this to the Angular Module whose components require the date picker
import {MatNativeDateModule, MatDatepickerModule} from "@angular/material";

//Added this in the root style.css file for the entire app
@import "~@angular/material/prebuilt-themes/indigo-pink.css";

I'm not sure what I'm doing wrong.

Update:

Module Code:

import {NgModule} from '@angular/core';
import {CommonModule} from '@angular/common';
import {RouterModule} from "@angular/router";
import {ProposalListComponent} from './components/proposal-list.component';
import {ProposalDetailComponent} from './components/proposal-detail.component';
import {ProposalEditComponent} from './components/proposal-edit.component';
import {ReactiveFormsModule} from "@angular/forms";
import {ProposalEditResolverService} from "./services/proposal-edit-resolver.service";
import {SectorResolverService} from "../root/services/sector-resolver.service";
import {ProposalAddComponent} from './components/proposal-add.component';
import {AuthGuard} from "../authentication/guards/auth.guard";
import {MatNativeDateModule, MatDatepickerModule, MatFormFieldModule, MatInputModule} from "@angular/material";
import {FileDropModule} from "ngx-file-drop";
import {ProposalListResolverService} from "./services/proposal-list-resolver.service";

@NgModule({
    imports: [
       CommonModule,
       RouterModule.forChild([
        {
          path: 'proposals',
          component: ProposalListComponent,
          canActivate: [AuthGuard],
          resolve: {proposals: ProposalListResolverService}
        },
        {
          path: 'proposals/:id',
          component: ProposalEditComponent,
          canActivate: [AuthGuard],
          resolve: {proposal: ProposalEditResolverService, sector: SectorResolverService}
        },
        {
         path: 'proposals/0/new',
         component: ProposalAddComponent,
         canActivate: [AuthGuard],
         resolve: {sector: SectorResolverService}
         }
        ]),
         ReactiveFormsModule,
         MatFormFieldModule,
         MatInputModule,
         MatDatepickerModule,
         MatNativeDateModule,
         FileDropModule
        ],
         declarations: [ProposalListComponent, ProposalDetailComponent,    ProposalEditComponent, ProposalAddComponent],
         providers: [ProposalEditResolverService,     ProposalListResolverService]
         })
    export class ProposalModule {
    }

HTML:

This code is within the "ProposalEditComponent" which is part of the above module.

<input matInput [matDatepicker]="picker" placeholder="Choose a date">
      <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
      <mat-datepicker #picker></mat-datepicker>

Answer 1

According to Official Documentation of Angular Material:

Including a theme is required to apply all of the core and theme styles to your application.

To get started with a prebuilt theme, include one of Angular Material's prebuilt themes globally in your application.

You can simply add the following to your style.css in order to get it work:

@import "~@angular/material/prebuilt-themes/indigo-pink.css";

Or you can directly include using <link> tag in your head tag.

---

P.S: To create your own custom built theme visit https://material.angular.io/guide/theming