body {
    font-family: "Arial", sans-serif;
    background-color: rgb(33, 33, 33);
}

#FamilyChart {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: auto;
    background-color: rgb(33, 33, 33);
    color: #fff;
}

.export-button {
    position: absolute;
    bottom: 10px;
    left: 10px;
    padding: 10px 20px;
    background-color: #4caf50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    z-index: 1000;
}