h2#danraku2 {position: relative;
  color: #333;
  display: inline-block;
  margin: 47px 0;
  text-shadow: 0 0 2px white;
}
h1:before {
  content: "";
  position: absolute;
  background: #ffd69d;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%,-50%);
  transform: translate(-50%,-50%);
  z-index: -1;}
h3#danraku3 {　　}　　h4#danraku4 {　　}