src/app/components/login/login.component.html

<mat-card class="login-card">
    <mat-tab-group mat-stretch-tabs style="margin-bottom: 20px" [(selectedIndex)]="selectedTabIndex">
        <mat-tab label="Login" i18n-label="Login">
            <div style="margin-top: 10px;">
                <mat-form-field style="width: 100%">
                    <mat-label i18n="User name">User name</mat-label>
                    <input [(ngModel)]="loginUsernameInput" matInput>
                </mat-form-field>
            </div>
            <div>
                <mat-form-field style="width: 100%">
                    <mat-label i18n="Password">Password</mat-label>
                    <input [(ngModel)]="loginPasswordInput" (keyup.enter)="login()" type="password" matInput>
                </mat-form-field>
            </div>
        </mat-tab>
        <mat-tab *ngIf="registrationEnabled" label="Register" i18n-label="Register">
            <div style="margin-top: 10px;">
                <mat-form-field style="width: 100%">
                    <mat-label i18n="User name">User name</mat-label>
                    <input [(ngModel)]="registrationUsernameInput" matInput>
                </mat-form-field>
            </div>
            <div>
                <mat-form-field style="width: 100%">
                    <mat-label i18n="Password">Password</mat-label>
                    <input [(ngModel)]="registrationPasswordInput" (click)="register()" type="password" matInput>
                </mat-form-field>
            </div>
            <div>
                <mat-form-field style="width: 100%">
                    <mat-label i18n="Confirm Password">Confirm Password</mat-label>
                    <input [(ngModel)]="registrationPasswordConfirmationInput" (click)="register()" type="password" matInput>
                </mat-form-field>
            </div>
        </mat-tab>
    </mat-tab-group>
    <div *ngIf="selectedTabIndex === 0" class="login-button-div">
        <button [disabled]="loggingIn" color="primary" (click)="login()" mat-raised-button><ng-container i18n="Login">Login</ng-container></button>
        <mat-progress-bar *ngIf="loggingIn" class="login-progress-bar" mode="indeterminate"></mat-progress-bar>
    </div>
    <div *ngIf="selectedTabIndex === 1" class="login-button-div">
        <button [disabled]="registering" color="primary" (click)="register()" mat-raised-button><ng-container i18n="Register">Register</ng-container></button>
        <mat-progress-bar *ngIf="registering" class="login-progress-bar" mode="indeterminate"></mat-progress-bar>
    </div>
</mat-card>