.container1 {
             width: 955px;
            height: 1868px;
            font-family: '微软雅黑', Arial, sans-serif;
            line-height: 1.6;
            margin: 20px;
        }


.container1 h1 {
    font-size: 32px;
    font-weight: bold;
    color: black;
    line-height: 1.6;
}

.container1 h2 {
    font-size: 24px;
    font-weight: bold;
    color: black;
    line-height: 1.6;
}

.container1 h3 {
    font-size: 18px;
    font-weight: bold;
    color: black;
    line-height: 1.6;
}

.container1 h4 {
    font-size: 16px;
    font-weight: bold;
    color: black;
    line-height: 1.6;
}

.container1 p {
    font-size: 14px;
    font-weight: normal;
    color: black;
    line-height: 1.6;
}


        .example {
            margin: 20px 0;
            padding: 10px;
            background-color: #f9f9f9;
            border-left: 4px solid #4CAF50;
        }

        .example h4 {
            margin-top: 0;
        }

        .example img {
            max-width: 100%;
            height: auto;
            margin-top: 10px;
        }

        .example ul {
            margin-left: 20px;
        }