.node-card{
    display: flex;
    flex-direction: column;
    align-items: center;
}

.node-card::after{
    position: relative;
    display: flex;
    content: "";
    height: 20px;
    width: 0px;
    border: dashed #000 2px;
    bottom: 190px;
}

.node-card.-variable::after{
    bottom: 160px;
}