.e_bannner {
    width: 100%;
    height: 565px;
    position: relative;
    background-image: url(../images/down_p.jpg?ver=1.5);
    background-position: center center;
    background-repeat: no-repeat;
}

    .e_bannner .echancon {
        position: relative;
        width: 500px;
        /* margin: 0 auto; */
        height: 360px;
        top: 100px;
        /*border: solid 1px white;*/
        left: 50%;
        text-align: center;
        color: white;
    }

    .e_bannner .downbtn {
        font-size: 25px !important;
        top: 220px;
        display: block;
        width: 200px;
        height: 60px;
        line-height: 60px;
        cursor: pointer;
        /* border: solid 1px yellow; */
        margin-top: 40px !important;
        background-color: #EB6100;
        text-align: center !important;
        border-radius: 5px;
    }
.e_bannner .downbtn a{
    color:white;
    padding: 10px 46px
}

.e_bannner .currver{
    font-size: 64px;
}
.e_bannner .currdesc{
    font-size: 16px;
}
.e_bannner .desccon{
    text-align: left;
    margin-left: 155px;
    font-size: 14px;
    margin-top: 5px;
    margin-bottom: 5px;
}
.e_bannner .currvernum{
    margin-top: 40px;
}