@charset "UTF-8";
body{
  background-color: #f9bb00;
}
h1 {
  text-align: center;
  color: #ec631d;
}
h2 {
  text-align: center;
  color: #ec631d;
  font-size: 20px;
}
p{
  text-align: center;
  color: #ec631d;
  font-size: 15px;
}
.container{
  display: flex;
  flex-wrap: wrap;
}
.img_block{
text-align: center;
width: 100%;
height: 100%;
}
.img_block img{
  width: 10%;
  height: 10%;
  object-fit: cover;
}
audio{
  display: center;
}
.center_item { 
  padding: 20px;              /* 余白指定 */
  background-color:  #ddd;    /* 背景色指定 */
  height: 150px;              /* 高さ指定 */
}

.centering {
  background-color: #ddd;  /* 背景色指定 */
  width: 400px;
  color: #127099;
  height: 150px;
  margin:  0 auto;            /* 中央寄せ */
}

nav{
  list-style: none;
  overflow: hidden;
}
nav li{
  text-align: center;
  list-style: none;
  float: left;
  width: 24%;
  height: 50px;
  line-height: 50px;
  background-color: #064879;
  color: #ebdfd8;
  margin-right: 1%;
  margin-top: 1%;
  margin-bottom: 1%;
}
nav li a{
  text-align: center;
  text-decoration: none;
  width: 19%;
  color: #ebdfd8;
  font-weight: bold;

}
section li{
  list-style: none;
  float: left;
  width: 13%;
  margin-right: 1%;
}

article{
  margin-left: 15%;
  background-color: #ebdfd8;
  width: 70%;
}
article h1{
  text-decoration: none;
}
header{
  background-color: black;
  text-align: center;
}
header img{

  width: 50%;
}
.kouza{
  text-align: left;
}
.kouza h1{
  text-align: left;
}
.kouza h2{
  text-align: left;
}
.kouza h3{
  text-align: left;
}
.kouza p{
  text-align: left;
  margin-left: 1%;
}
pre{
  display: inline-block;
  margin-left: 25%;
  width: 50%;
  max-height: 100px;
  overflow: auto;
  background-color: #f9bb00;

}