main{
  height: 500px;
}
.omikujiContainer {
  height: auto;
}
#omikujiBtn {
  width: 200px;
  height: 200px;
  background: linear-gradient(125deg, #dd7579, 10%, #e71b21);
  /* background: #e00f16; */
  border-radius: 50%;
  margin: 100px auto ;
  text-align: center;
  line-height: 200px;
  color: #fff;
  font-weight: bold;
  font-size: 42px;
  cursor: pointer;
  box-shadow: 0 20px 0 #b6261c;
  user-select: none;
  filter: drop-shadow(10px 10px 10px rgba(0,0,0,0.3));
  user-select: none;
}
#omikujiBtn:hover {
  opacity:0.9;
}
#omikujiBtn:active {
  box-shadow: 0 5px 0 #ac291f;
  margin-top: 135px;
}
#omikujiPict {
  border-radius: 50%;
}
/* タブレット以上の端末用設定 */
@media (min-width: 530px) {
  /* footer {
    bottom: -900px;
  } */
}