@charset "utf-8";
/* CSS Document */
#bottom #page_back{ text-align: center;background-color: #000;margin: 0px;}
#bottom #page_back a { width: 100%; display: block;padding: 10px 0; color: #fff;}


.iframe-wrapper{
    position: relative;
    height: 0;
    overflow: hidden;
    padding-top: 56.25%;
}
iframe{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.howto-wrapper {
	width:95%;
	margin:5px auto;
}