body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f0f0f0;
}

#container {
    max-width: 600px;
    margin: 0 auto;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hello-world {
    text-align: center;
}

.hello-world h1 {
    color: #333;
    margin-bottom: 20px;
}

.button-container {
    text-align: center;
    margin-top: 30px;
}

.bevel-button {
    background-color: #4CAF50;
    color: white;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25),
                7px 7px 10px rgba(0, 0, 0, 0.18),
                inset 0 2px 0 rgba(255, 255, 255, 0.55),
                inset 0 -2px 0 rgba(0, 0, 0, 0.18);
    transition: all 0.1s ease;
}

.bevel-button:hover {
    background-color: #45a049;
}

.bevel-button:active {
    box-shadow: inset 4px 4px 8px rgba(0, 0, 0, 0.35),
                inset -2px -2px 4px rgba(255, 255, 255, 0.22);
    transform: translate(2px, 2px);
}