.single .post-content h2 {
font-size: 26px;
font-weight: bold;
padding: 0 0 18px;
margin-bottom: 32px;
border-left: none;
border-bottom: solid 3px #0000FF;
}

.single .post-content h3 {
font-size: 18px;
font-weight: bold;
padding-left: 14px;
border-left: solid 2px #0000FF;
}

.single .post-content h4{
font-size:120%;
border-left: 8px double #FF0000;/*文字の横に付箋のようなマークを入れる*/
width:515px;/*見出しの横幅*/
line-height: 26px;/*h3の高さ設定*/
padding-left: 5px;/*文字の左にスペース*/
color:#333333; /*文字の色*/
}

.movie-wrap {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px;
    height: 0;
    overflow: hidden;
}
 
.movie-wrap iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}