============================models.ts=========

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { MatInputModule } from '@angular/material/input';
import { MatCardModule } from '@angular/material/card';
import { MatButtonModule } from '@angular/material/button';
import { MatMenuModule } from '@angular/material/menu';
import { MatToolbarModule } from '@angular/material/toolbar';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    BrowserAnimationsModule,
    MatInputModule,
    MatCardModule,
    MatToolbarModule,
    MatButtonModule,
    MatMenuModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

============================app.html=========

<mat-toolbar class="mat-toolbar">
  <button class="mat-button" (onclick)="myLog();" mat-button>Home
  </button>
</mat-toolbar>

<mat-card class="example-card">
  <mat-card-header>
    <div mat-card-avatar class="example-header-image"></div>
    <mat-card-title>*username*</mat-card-title>
    <mat-card-subtitle>*location*</mat-card-subtitle>
  </mat-card-header>
  <img mat-card-image src="https://material.angular.io/assets/img/examples/shiba2.jpg" alt="Photo of a Shiba Inu">
  <mat-card-content>
    <p>
      *comment section*
    </p>
    <form class="example-form">
        <mat-form-field class="example-full-width">
          <textarea matInput placeholder="Leave a comment"></textarea>
        </mat-form-field>
      </form>
  </mat-card-content>
  <mat-card-actions>
    <button mat-button>LIKE</button>
    <button mat-button>SHARE</button>
  </mat-card-actions>
</mat-card>

<mat-card class="example-card">
  <mat-card-header>
    <div mat-card-avatar class="example-header-image"></div>
    <mat-card-title>*username*</mat-card-title>
    <mat-card-subtitle>*location*</mat-card-subtitle>
  </mat-card-header>
  <img mat-card-image src="https://material.angular.io/assets/img/examples/shiba2.jpg" alt="Photo of a Shiba Inu">
  <mat-card-content>
    <p>
      *comment section*
    </p>
    <form class="example-form">
      <mat-form-field class="example-full-width">
        <textarea matInput placeholder="Leave a comment"></textarea>
      </mat-form-field>
    </form>

  </mat-card-content>
  <mat-card-actions>
    <button mat-button>LIKE</button>
    <button mat-button>SHARE</button>
  </mat-card-actions>
</mat-card>

============================app.css=========

.mat-toolbar {
    background: linear-gradient(to left,  #e66465, #9198e5);
    margin-block-end: auto;
    margin-block-start: auto;
}

.mat-button {
    margin-inline-start: 60px;
    font-size: medium;
}

.example-card {
    margin-block-start: 25px;
    max-width: 400px;
    margin-inline-start: 480px;

}

.example-header-image {
    background-image: url('https://material.angular.io/assets/img/examples/shiba1.jpg');
    background-size: cover;
}