.sell-by-cm-container {
    margin: 20px 0;
    padding: 15px;
    border: 1px solid #e2e2e2;
    border-radius: 4px;
    background-color: #f9f9f9;
}

.sell-by-cm-container h4 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 16px;
    font-weight: 600;
}

.sell-by-cm-control {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.sell-by-cm-unit {
    margin-left: 5px;
    font-weight: 600;
}

.sell-by-cm-price {
    margin-top: 10px;
    font-size: 16px;
}

.price-label {
    font-weight: 600;
    margin-right: 5px;
}

.sell-by-cm-btn {
    background: #f0f0f0;
    border: 1px solid #ccc;
    color: #333;
    font-size: 16px;
    width: 30px;
    height: 30px;
    line-height: 1;
    text-align: center;
    padding: 0;
    cursor: pointer;
    border-radius: 3px;
}

.sell-by-cm-btn:hover {
    background: #e0e0e0;
}

.sell-by-cm-dec {
    margin-right: 5px;
}

.sell-by-cm-inc {
    margin-left: 5px;
}

#sell_by_cm_length {
    width: 80px;
    text-align: center;
}