angular_1_3.html

<div class="counter__container">
    <div class="counter__container-inner">
        <h4>Counter</h4>
            <div class="button-group">
                <button (click)="decrement()">-</button>
                <button (click)="clearCounter()">0</button>
                <button (click)="increment()">+</button>
            </div>
        <h5>Counter: {{counter}}</h5>
    </div>
</div>