.ysfw{
    width: 70%;
    margin-left: 15%;
    display: block;
    word-wrap: break-word;
    color: black;
}

.title-yunshu{
    text-align: center;
    font-size: 28px;
    font-weight: bold;

    padding: 20px 0 20px;
}

.ysfw p{
    font-weight: bold;
    font-size: 20px;
    color: black;
}