h1 {
    font-size: 24px;
    font-weight: bold;
    font-family: '微软雅黑', sans-serif;
    text-align: center;
}
hr {
    margin: 10px 0;
}
h2 {
    font-size: 14px;
    font-weight: bold;
    font-family: '微软雅黑', sans-serif;
    text-align: center;
    color: #736e6e;
}
h3 {
    font-size: 14px;
    font-weight: bold;
    font-family: '微软雅黑', sans-serif;
    text-align: center;
    color: #736e6e;
}
p {
    font-family: '微软雅黑', sans-serif;
    font-size: 14px;
    color: #736e6e;
    margin: 30px 0;"
}
.pdf{
    width: 400px;
    margin: auto;
    margin-bottom: 50px;
}
.pdf .a-left {
    float: left;
}
.pdf .a-right {
    float: right;
}
.pdf span{
    font-size: 12px;
    position: relative;
    left: -40px;
    bottom: -45px;
}