.image {
    position: relative;
    max-width: 100%;
}
video {
    object-fit: contain;
    max-width: 50%;
    max-height: 50%;
    display: block;
    margin: .2rem auto;
    text-align: center;
    background-color:rgb(40, 46, 83);
    vertical-align: baseline;
}
.aboutvideo {
    object-fit: contain;
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: .2rem auto;
    text-align: center;
    background-color:rgb(40, 46, 83);
    vertical-align: baseline;
}
.chunzhaovideo {
    object-fit: contain;
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: .2rem auto;
    text-align: center;
    background-color:rgb(40, 46, 83);
    vertical-align: baseline;
}

@media (max-width:767px) {
video {
    max-width: 100%;
    max-height: 100%;
    display: inline-block;
    vertical-align: baseline;
}
.aboutvideo {
    max-width: 100%;
    max-height: 100%;
    display: inline-block;
    vertical-align: baseline;
}
.chunzhaovideo {
    max-width: 100%;
    max-height: 100%;
    display: inline-block;
    vertical-align: baseline;
}
}