.button-with-hint{
    position: relative;
}
.button-with-hint .hint-holder{
    position: absolute;
    bottom: 0px;
    left: 50%;
    
    display: block;
    text-align: center;
    display: none;
    width: 300px;
    margin-left: -150px;
}
.button-with-hint:hover .hint-holder{
    display: block;
}
.button-with-hint .hint-holder .btn-hint{
    padding: 5px 10px;
    border: 1px solid #ccc;
    display: inline-block;
    background: white;
    text-align: left;
    margin: 25px 20px;
    font-size: 16px;
}
.button-with-hint .hint-holder .btn-hint:after{
    content: ".";
    display: block;
    line-height: 0;
    color: white;
    position: absolute;
    left: 50%;
    margin-left: -8px;
    bottom: 18px;
    width: 15px;
    height: 8px;
    background: url(/common-static/img/hint-arrow.png) no-repeat;
    z-index: 1001;
}