/* --YouTube�T�C�Y����-- */
.video {
position: relative;
height: 0;
padding: 30px 0 56.25%;
overflow: hidden;
}

.video iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
.video-half {
position: relative;
height: 0;
padding: 30px 0  38%;
overflow: hidden;
}

.video-half iframe {
position: absolute;
top: 0;
left: 0;
width: 70%;
height: 90%;
}