.prodescription {
    border: 1px solid #e5e5e5;
    background: #f9f9f9;
    line-height: 24px;
    padding: 10px;
    margin-bottom: 15px;
    text-indent: 20px;
    font-size: 15px;
}








.n_banner {
    margin: 0 auto;
    height: auto;
    overflow: hidden;
    position: relative;
    width: 100%;
}

.n_banner img{
    width: 100%;
}








.fl {
    float: left;
}

.fr {
    float: right;
}