.volume-pricing-box {
    padding: 15px;
    border: 1px solid #ddd;
    margin: 20px 0;
    background: #f9f9f9;
}
.volume-pricing-box label {
    display: block;
    margin-bottom: 10px;
}
.volume-pricing-box .dimensions input {
    width: 100px;
    margin-left: 5px;
}