/* Common */
* {
  box-sizing: border-box;
  font-family: sans-serif;
}

/* header */
header {
  height: 50px;
  background-color: navy;
  opacity: 0.85;
  z-index: 2;
  position: fixed;
  width: 100%;
  /* padding: 0 10px; */
  /* display: flex; */
}
.header-left {
  float: left;
  text-align: left;
  padding: 0 10px 0 10px;
}
.header-right {
  float: right;
  text-align: right;
}
.header-right li {
  display: inline-block;
  list-style: none;
  line-height: 50px;
}
.header-right a {
  text-decoration: none;
  color: white;
  display:inline-block;
  width:5.5em;
  text-align: center;
  opacity: 0.8;
}
.menu-icon {
  color: white;
  float: right;
  font-size: 25px;
  padding: 10px 0;
  /* PC用　display none */
  display: none;
}
.menu {
  display: none;
}
.header-right a:hover {
  text-decoration: underline;
  background-color: #0000e0;
  opacity: 1.0;
}
h1 a {
  /* font-family:'Arial black'; */
  font-family:'Arial','Meiryo';
  font-style: italic;      
  text-decoration: none;
  color: white;
}

/* footer */
footer {
  height: 120px;
  padding: 10px 10px;
  background-color: #f0f0f0;
}
.footer-left {
  float: left;
}
.footer-left a {
  text-decoration: none;
  font-size: 14px;
}
.footer-right {
  float: right;
  text-align: right;
}
.footer-right li {
  list-style: none;
  font-size: 12px;
}
.footer-right a {
  text-decoration: none;
  color: gray;
}
.copy {
  color:gray;
  text-align: center;
}