.big-link { display:block;  text-align: center; color: #06f; }
.videolist { position:relative; float:left; width:350px; height:230px;font-size: 16px; margin-right:50px;  margin-bottom:30px; }
.vtit{font-size: 16px;color:#222;line-height:35px;}
a {font-size: 16px;color: #222222}
.videolist:hover{ cursor: pointer;}
#video1 {
 width: 1080px;
    height:630px;
    margin: 0 auto;
    position: relative;
}

#video1 video {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.VideoBtn1 {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 70px;
    height: 70px;
    margin-left: -35px;
    margin-top: -35px;
    cursor: pointer;
    z-index: 10;
}

#video2 {
    width: 1080px;
    height:630px;
    margin: 0 auto;
    position: relative;
}

#video2 video {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.VideoBtn2 {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 70px;
    height: 70px;
    margin-left: -35px;
    margin-top: -35px;
    cursor: pointer;
    z-index: 10;
}

#video3 {
 width: 1080px;
    height:630px;
    margin: 0 auto;
    position: relative;
}

#video3 video {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.VideoBtn3 {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 70px;
    height: 70px;
    margin-left: -35px;
    margin-top: -35px;
    cursor: pointer;
    z-index: 10;
}

#video4 {
 width: 1080px;
    height:630px;
    margin: 0 auto;
    position: relative;
}

#video4 video {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.VideoBtn4 {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 70px;
    height: 70px;
    margin-left: -35px;
    margin-top: -35px;
    cursor: pointer;
    z-index: 10;
}

#video5 {
 width: 1080px;
    height:630px;
    margin: 0 auto;
    position: relative;
}

#video5 video {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.VideoBtn5 {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 70px;
    height: 70px;
    margin-left: -35px;
    margin-top: -35px;
    cursor: pointer;
    z-index: 10;
}

#video6 {
 width: 1080px;
    height:630px;
    margin: 0 auto;
    position: relative;
}

#video6 video {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.VideoBtn6 {
    position: absolute;
    left: 50%;
    top: 50%;
    display: block;
    width: 70px;
    height: 70px;
    margin-left: -35px;
    margin-top: -35px;
    cursor: pointer;
    z-index: 10;
}