main {
    flex: 1;
}

body {
    display: flex;
    flex-direction: column;
}

.game_area {
    margin: 7.5vmin;
    border-radius: 2vmin;

    position: relative;

    outline: 2px solid black;
}

#target {
    width: 10%;
    aspect-ratio: 1 / 1;

    position: absolute;

    background-color: #4f8cff;
    border-radius: 50%;

    cursor: crosshair;
}