Contact form without a server using Angular - contact.component.html without Material

contact.component.html

<form class="contact" [formGroup]="form" method="post" (ngSubmit)="onSubmit()">
  Name
  <input [formControl]="name" required>
  Email
  <input [formControl]="email" placeholder="email@example.com" required>
  Message
  <textarea [formControl]="message" maxlength="256" placeholder="I'm interested in..." required></textarea>
  <button [disabled]="isLoading" class="submit" type="submit">Submit</button>
  <input [formControl]="honeypot" class="hidden" type="text" />
  <div [ngClass]="!submitted? 'hidden' : 'visible'" class="center-text">
    <span>{{responseMessage}}</span>
  </div>
</form>