.paper-nodes {
    padding: 5px;
    border: 1px solid silver;
    border-radius: 10px;
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    overflow-x: hidden;
    overflow-y: auto;
    width: 100%;
    max-width: 530px;
    height: 200px;
}
