#activity span {
    background-color: transparent;
    /*display: inline-block;*/
    width: auto;
}

#activity span.reveal {
    background-color: #F4D03F;
    cursor: pointer;
}



#activity div[id^="hint-"] span {
    position: absolute;
    top: 0px;
    right: 0px;
    display: block;
    background-color: rgba(0, 75, 143, 1) !important;
    padding: 5px 10px 5px 10px !important;
    border-color: rgba(0, 75, 143, 1);
    box-shadow: none;
    color: #fff;
    outline: medium none;
    text-decoration: none;
    cursor: pointer;
}