.dataTable thead th i.question {
    margin: 0 0 0 0.5em;
    visibility: hidden;
}
.ui-tooltip {font-size:0.8rem; font-family:Verdana;}
.ui-tooltip ul {margin:0.2rem 0; padding:0.1rem 1rem;}
    .ui-tooltip ul li {margin:0.1rem 0;}