Ionic 4 Latihan

<ion-header>
  <ion-toolbar>
    <ion-title>
      Latihan
    </ion-title>
  </ion-toolbar>
</ion-header>

    <div text-center>
    <h1>Login</h1>
    </div>

<ion-content>
  <ion-card-content>
      <ion-item>
        <ion-label position="floating">Username : </ion-label>
        <ion-input type="text" [(ngModel)]="username"></ion-input>
      </ion-item>
      <ion-item>
        <ion-label position="floating">Password :</ion-label>
        <ion-input type="password" id="input_password" [(ngModel)]="kata_sandi"></ion-input>
      </ion-item>
      <div margin-vertical text-center id="btn-masuk">
          <ion-button expand="block" fill="outline" (click)="signIn()"><ion-icon name="logo-nodejs"></ion-icon>Masuk Aja !</ion-button>
      </div>
  </ion-card-content>
</ion-content>
<!-- <script src="tab2.js"></script> -->

<!-- Default Input dan bikin form login -->