#termnal{
    margin: auto;
    width: 1200px;
    height: 200px;
    background-color: aquamarine;
}
#stage{
    margin: auto;
    width: 1200px;
    height:600px;
    background-color: aqua;
    position: relative;
    overflow: hidden;
}

.node{
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: blue;
    position: absolute;
    transform: translate(-50%, -50%);
    /* 追加 */
    display:flex;
    align-items:center;
    justify-content:center;

    /* font-size:10px; */
    color:white;
}
.ring{
    content: "";   

    position: absolute;
    width: 200px;
    height: 200px;

    border: 2px solid pink;
    border-radius: 50%;
    box-sizing: border-box;

    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
#lineLayer{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    pointer-events:none;
}
#nodeLayer{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    pointer-events:none;
}

/* パケット */
.packet{
    position:absolute;

    width:20px;
    height:20px;

    border-radius:10%;
    background:azure;

    display:flex;
    justify-content:center;
    align-items:center;

    font-size:10px;

    transform:translate(-50%,-50%);

    pointer-events:none;

    z-index:1000;
}