body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: white;
    margin: 0;
}

.ichi-meter {
    display: inline-block;
    text-align: center;
    background-color: black;
    padding: 10px;
    border: 5px solid #32CD32;
    border-radius: 10px;
}

.title {
    color: black;
    background-color: #32CD32;
    font-size: 24px;
    font-weight: bold;
    padding: 10px;
    display: block;
    border-bottom: 3px solid black;
}

.number-display {
    color: #32CD32;
    font-size: 80px;
    font-weight: bold;
    background-color: black;
    padding: 20px;
    display: block;
}