body {
    background-color: black;
    margin: 0;
    color: aliceblue;
    font: 1em sans-serif;
    overflow: hidden;
}

.x-axis {
    position: absolute;
    inset: 50vh 0px 50vh 0px;
    margin: 0px;
}

.y-axis {
    position: absolute;
    inset: 0px 50vw 0px 50vw;
    margin: 0px;
}

.x-label {
    position: absolute;
    right: 10px;
    top: 50vh;
}

.y-label {
    position: absolute;
    top: 10px;
    right: 51vw;
}

.ball {
    position: absolute;
    height: 50px;
    width: 50px;
    background-color: aquamarine;
    border-radius: 50%;
}

input {
    width: 200px;
}

datalist {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    writing-mode: vertical-lr;
    width: 200px;
}