.body {
    width: 1200px;
    margin: 0 auto;
    /* 居中对齐 */
    /* background-color: #f0f0f0;
    padding: 20px; */
    /* box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); */
    /* 可选的阴影效果 */
}
.container {
    margin-top: 20px;
    margin-bottom: 20px;
    width: 1200px;
    height: 35px;
    display: flex;
    font-size: 25px;
}
.left {
    width: 400px;
    background-color: #add8e6;
    color: white;
    font-size: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.right {
    width: 800px;
    background-color: #d3d3d3;
}