#number-container {
    position: relative;
    width: 100%;
    height: 55vh;
    margin-bottom: 3.5rem;
    background-color: #e0edff;
    border-radius: 20px;
    border: 10px solid #e0edff;
}

.number {
    position: absolute;
    font-size: 6rem;
    font-weight: bold;
    background-color: #b2c9ec;
    width: 150px;
    height: 150px;
    line-height: 150px;
    text-align: center;
    border-radius: 50%;
    cursor: default;
}

#button-container {
    display: block;
    grid-template-columns: none;
    max-width: inherit;
    margin: 0 auto;
}

.number-button {
    font-size: 2.5rem;
    padding: 1rem 2rem;
    margin-right: 1.5rem;
}

@media (max-width: 768px) {
    .number {
        font-size: 1.5rem;
        width: 40px;
        height: 40px;
        line-height: 40px;
    }

    .number-button {
        font-size: 1.2rem;
        padding: 0.8rem;
    }
}