web/gui2-fw-lib/lib/svg/icon/icon.component.html

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<div class="tooltip">
<svg class="embeddedIcon" [attr.width]="iconSize" [attr.height]="iconSize" viewBox="0 0 50 50" (mouseover)="toolTipDisp = toolTip" (mouseout)="toolTipDisp = undefined">
    <g class="icon" [ngClass]="classes">
        <rect width="50" height="50" rx="5"></rect>
        <use width="50" height="50" class="glyph" [attr.href]="'#'+iconId"></use>
    </g>
</svg>
<!-- I'm fixing class as light as view encapsulation changes how the hirerarchy of css is handled -->

<!-- <p id="tooltip" class="light" *ngIf="toolTip" [ngStyle]="{ 'display': toolTipDisp ? 'inline-block':'none'}">{{ toolTipDisp }}</p> -->

    <span class="tooltiptext" [ngStyle]="{ 'display': toolTipDisp ? 'inline-block':'none'}">{{toolTipDisp}}</span>
</div>