.ui-tooltip {
    background-color: rgba(50,50,50,0.9);
    color: inherit;
    font-family: inherit;
    font-size: 20px;
    padding: 4px 1px 2px 1px;
    border: 0px !important;
    border-radius: 0;
    box-shadow: none;
}
.ui-tooltip-content {
}

/* For mobile phones: */
@media only screen and (max-width: 1000px) and (min-height: 800px) {
   .ui-tooltip {
      visibility: hidden;
    }
}