.video {
position: relative;
height: 0;
padding: 0px 0 56.25%;
overflow: hidden;
}

.video iframe {
position: absolute;
top: 0;
left: 0;
width: 800px;
height: 450px;
}


.shiryou {
width: 200px;
height: 283px;
}

@media only screen and (max-width: 800px) {

.video iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}

.news_title {
font-size: 10px;
}

}