*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}
img{
    vertical-align:middle;
}
.w{
    width:1150px;
    margin:0 auto;
}
/*标题*/
.title{
    height:58px;
    background-color:gray;
    line-height:56px;
    font-size:20px;
    font-weight:bold;
    user-select:none;
}
.title_con{
    
}
/*视频*/
.video{
    height:100%;
    margin-bottom:20px;
}
.myVideo{
    width:80%;
    height:80%;
    margin-left:10%;
}