body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

.container {
    border: 2px solid #000;
    padding: 20px;
    width: 600px;
    text-align: center;
    background-color: #fff;
}

h1 {
    margin-bottom: 20px;
}

.buttons {
    margin-bottom: 20px;
}

.buttons button {
    margin: 5px;
    padding: 10px 15px;
    font-size: 16px;
    cursor: pointer;
}

.box {
    border: 2px solid #000;
    padding: 20px;
    margin: 20px 0;
    background-color: #e0e0e0;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
}

#explanation {
    margin-top: 20px;
    font-style: italic;
}