.fixinfo{
    position:  fixed;
    top: 0;
    left:  0;
    width:  100%;
    height:  100%;
    z-index: 3333;
    background: rgba(0, 0, 0, 0.5);
    
}
     .fixinfo .videobox{
    position:  absolute;
    width: 1024px;
    height: 576px;
    top: 50%;
    margin-top: -288px;
    left:  50%;
    margin-left: -512px;
}


.pro_online .left_form{
    width: 80%;
    max-width: 1230px;
    margin: 0 auto;
    background: #fff;
    float: none;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    border-radius: 13px;
}
.pro_online .left_form .close1{
    /* float: right; */
    padding: 8px 13px;
    cursor: pointer;
    text-align: right;
}
.pro_online .left_form h3{
    text-align: center;
    margin-bottom: 30px;
    font-size: 24px;
}

.fixbox{
    padding: 0% 3.5% 1%;
    line-height: 1.8;
    font-size: 16px;
}