body {
 background-color: #000000;
 margin:0; padding:0; text-align:center; font-family:sans-serif; color:#ffffff; font-size:100%;
}

h1 { padding: 0.5em;/*文字周りの余白*/
  color: white;
  background: #008080;/*背景色*/
  border-bottom: solid 4px #300000;/*下線*/
 font-size:110%;}

#navs {
text-align:center;
  list-style: none;
  overflow: hidden;
}
 
#navs li {
 display: inline-block;
  width: 200px;
  text-align: center;
  background-color: #008080;
  height: 40px;
  line-height: 40px;
  margin-right: 2px;
}
 
#navs li a {
  text-decoration: none;
  color: #fff;
  font-weight: bold;
  padding: 10px;
}


a {
  text-decoration: none;
  color: #fff;
  font-weight: bold;
  padding: 10px;
}