@charset "utf-8";
#c15 {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-evenly;
}
.youtube-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9の比率 */
  height: 0;
}

.youtube-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
#c14 {
	clear: both;
	margin:    ;
	padding:    ;
}
#c14 h1,
#c14 div {
	text-align: center;
}
#c3 {
	clear: both;
	margin:    ;
	padding:    ;
}
#c5 {
	clear: both;
	margin: 100px 0 50px 0;
	padding:    ;
}
#c5 h2,
#c5 div {
	text-align: left;
}
#c15 {
	clear: both;
	margin:    ;
	padding:    ;
}
#c15 {
	display: flex;
	flex-direction: row;
	flex-wrap: wrap;
}
#c15 > div.box {
	margin: 0 20px 20px 0;
	box-sizing: border-box;
	overflow: hidden;
}
#c15 > div:nth-of-type(1) img {
	width: 400px;
	height: 400px;
}
#c15 > div:nth-of-type(2) img {
	width: 400px;
	height: 533px;
}
#c15 > div:nth-of-type(3) img {
	width: 400px;
	height: 446px;
}
#c15 > div:nth-of-type(4) img {
	width: 400px;
	height: 300px;
}
#c11 {
	clear: both;
	margin: 100px 0 50px 0;
	padding:    ;
}
#c11 h2,
#c11 div {
	text-align: left;
}
#c12 {
	clear: both;
	margin:    ;
	padding:    ;
}
#c12 h3,
#c12 div {
	text-align: center;
}
#c13 {
	clear: both;
	margin: 30px auto 0 auto;
	padding:    ;
}
#c13 h3,
#c13 div {
	text-align: center;
}
@media screen and (min-width: 641px) and (max-width: 834px) {
#c14 {
}
#c3 {
}
#c5 {
}
#c15 {
}
#c15 {
}
#c11 {
}
#c12 {
}
#c13 {
}
}
@media screen and (max-width: 640px) {
#c14 {
}
#c3 {
}
#c5 {
}
#c15 {
}
#c15 {
}
#c11 {
}
#c12 {
}
#c13 {
}
}