marchen-srv-fork/src/main/webapp/static/css/tooltip.css

.tooltip{
    position: absolute;
    max-width: 300px;
    top: 3px;
    left: 105%;
    padding: 8px 10px;
    border-radius: 5px;
    color: #fff;
    background: #000000;
    box-shadow: 0 2px 2px 0 #7F7C7C;
    white-space: nowrap;
}
.tooltip:after{
    content: '';
    position: absolute;
    top: 35%;
    right:100%;
    margin-left: 10px;
    width: 0;
    height: 0;
    border: 5px solid transparent;
    border-right: 7px #000;
    border-left-width: 7px;
}