<div *ngIf="visible">
    <div *ngFor="let item of items"
         [ngStyle]=" {'left.px': this.position.left, 'top.px': this.position.top}"
         id="chartjs-tooltip">
        <span [style.background]="item.color" class="tooltip-color"></span>
        {{ item.title }} : {{item.body}}
    </div>
</div>