.login-container {
    height: calc(100% - 50px);

    display: flex;
    justify-content: center;
    align-items: center;
}

.login-dialog {
    width: 400px;
    height: 400px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
}

/* 标题 */
.login-dialog h3 {
    text-align: center;
    padding: 50px 0;
}

/* 针对一行设置样式 */
.login-dialog .row {
    width: 100%;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-dialog .row span {
    width: 100px;
    font-weight: 700;
}

#user_name, #password {
    width: 200px;
    height: 40px;

    font-size: 20px;
    line-height: 40px;
    padding-left: 10px;
    border: none;
    outline: none;
    border-radius: 10px;
}

#submit {
    width: 300px;
    height: 50px;

    background-color: rgb(0, 128, 0);
    color: white;

    border: none;
    outline: none;
    border-radius: 10px;

    margin-top: 20px;
}

#submit:active {
    background-color: #666;
}