.c-content-video {
    width: 780px;
    height: auto;
    display: flex;
    flex-direction: column;
}

.c-content-line {
    width: 780px;
    height: 200px;
    display: flex;
    flex-direction: row;
    margin-top: 10px;
}

.c-content-block {
    width: 248px;
    height: 200px;
    display: flex;
    flex-direction: column;
    margin-left: 5px;
    margin-right: 5px;
    border: 1px solid #0099ff;
}

.c-content-v {
    width: 248px;
    height: 180px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.c-content-m {
    width: 248px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-top: 1px solid #0099ff;
}