.ui-tooltip, .arrow:after {
    background: #ccc;
    text-shadow: none;
    border: 1px solid white;
}
.ui-tooltip {
    padding: 5px;
    font-size: 12px;
    max-width: 300px;
    border-radius: 5px;
    box-shadow: 2px 2px 15px #999;
    white-space: pre-line;
}

.ui-helper-hidden-accessible {
    display: none;
}