how to style primeng tooltip

Question

I had tried by giving custom class & tool tip Style Class to the tooltip it does not work for this

Answer 1

HTML

   <button
                pButton 
                type="button" 
                class="p-button-raised p-button-rounded p-button-success"
                label="Tooltip Button" 
                pTooltip="Hello World !" 
                tooltipPosition="bottom">
   </button>

CSS

.p-tooltip .p-tooltip-text {
    background-color: grey !important;
    color: green !important;
}

or better to use :host ::ng-deep without important

:host ::ng-deep .p-tooltip .p-tooltip-text {
    background-color: grey;
    color: green;
}