src/app/components/polymer/tooltip/tooltip.component.html
<ng-content></ng-content>
<div class="ptooltiptext" *ngIf="tooltip&&tooltip!=''||tooltipHtml&&tooltipHtml!=''">
<div [innerHtml]="_sanitizer.bypassSecurityTrustHtml(tooltip)"></div>
<div [innerHtml]="_sanitizer.bypassSecurityTrustHtml(tooltipHtml)"></div>
</div>