/*ヘッダーcss*/
header{
  z-index: 10;
  /*height: 150px;*/
  position: fixed;
  background-color: #005BAC;
  width: 100%;
  text-align: center;
  z-index: 2;
  box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.25);
}
.title{
  width: 100%;
  color: #ffffff;
  font-size: 35px;
  margin-top: 10px;
  margin-left: 10px;
  margin-bottom: 0px;
  text-align: center;
}

/*メニュー部分*/
header ul {
  overflow:hidden;
  list-style:none;
  margin: 0 auto;
  z-index: 20;
}
header ul li {
  display: inline-block;
  padding: 15px 10px 5px 10px;

}
header ul li a {
  position: relative;
  display: inline-block;
  text-decoration: none;
  color: #fff;
}
header ul li a::after {
  position: absolute;
  bottom: -4px;
  left: 0;
  content: '';
  width: 100%;
  height: 2px;
  background: #fff;
  opacity: 0;
  visibility: hidden;
  transition: .3s;
}
header ul li a:hover::after {
  bottom: -2px;
  opacity: 1;
  visibility: visible;
}

/*ウィンドウサイズ別の指定*/
@media screen and (max-width:1000px){
  /*画面サイズが1000px以下の場合に適用*/
  header{
    position:fixed;
  }
  header ul {
    display:none;
  }
}