body {
    background-color: #f5f5f5;
}

.turnover {
    width: 100%;
    height: 400px;
}

.turnover-div {
    height: 400px;
    margin: 15px 15px;
}

.hot-product {
    width: 100%;
    height: 400px;
}

.hot-product-div {
    height: 400px;
    margin: 15px 15px;
}