.navbar-right{
	display: none;
}

h1,
h2,
h3,
h4,
h5 {
    margin: 50px 0 20px;
}

h4 {
    color: rgb(0, 140, 186);
}

h5{
    font-weight: bold;
}

p {
    margin: 20px 0 20px;
}

img[alt*=bk]{
    background-color: #3a3b3d;
border-radius: 8px;
}

blockquote p {
    margin: auto;
}

blockquote {
    position: relative;
    margin: 20px 0 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 30px;
    padding-left: 60px;
    background-color: #f7f7f7;
}

blockquote:before {
    content: '"';
    font: 1.2em/1.6em Georgia, "Times New Roman", Times, serif;
    font-size: 50px;
    position: absolute;
    left: 30px;
    top: 0;
}

.youtube_wrapper {
    position: relative;
    width: 100%;
}
.youtube_wrapper:before {
    content:"";
    display: block;
    padding-top: 56.25%; /* 高さと幅の比を16:9に固定。9/16*100=56.25 */
}
.youtube_wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}


.youtube_wrapper.SHORTCUT_KEY {
    max-width: 681px;
}
.youtube_wrapper.SHORTCUT_KEY:before {
    padding-top: 71.2%;
}


__footer{
    display: none;
}