html, body {
    padding: 0;
    margin: 0;
}

.unselectable {
    user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -o-user-select: none;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.controls {
    margin-right: 16px;
    margin-left: 16px;
    padding: 2pc;
    border: 1px solid black;
    display: flex;
    flex-direction: column;
    align-items: center;
    button, input {
        margin: 8px;
    }
    input[type="number"] {
        text-align: center;
        padding: 4px;
        width: 4rem;
        height: 2rem;
    }
}

#ui {
    width: 75vh;
    height: 75vh;
    border: 2px dotted black;
}