body {
    height: 100%;
    padding: 60px;
    display:flex;
    justify-content: center;
    background: linear-gradient( 100deg, #f3e7e9, #e3eeff);
}

.container {
    padding: 60px;
    width: 700px;
    margin-left: auto;
    margin-right: auto;
    background-color: #f1ecec;
}

body div h1 {
    text-align: center;
}

body div p {
    margin-top: 10px;
    text-align: center;
    font-size: 20px;
}

body div button {
    display:block;
    background-color: #A8D1E7;
    color:#fc4053;
    width: 200px;
    height: 45px;
    border: 0;
    font-size: 16px;
    box-sizing: content-box;
    border-radius: 5px;
    font-family: "微软雅黑";
    font-weight: bold;
}

#button_en {
    margin-right: 80px;
    font-family: "sans-serif";
    font-weight: bold;
}

#button_ch{
    margin-left: 80px;
}

button:hover {
    background-color: #3b55a8;
}

button:checked{
    background-color: #355C7D;
}