#contents {
  z-index: 0;
}
#modal-open {
  font-size: 17px;
  cursor: pointer;
  text-decoration: none;
}
/* モーダル コンテンツエリア */
#modal-main {
  display: none;
  width: 80%;
  margin: 0;
  padding: 40px 40px;
  background-color: #ffffff;
  color: #000;
  position:fixed;
  z-index: 999999;
}
#modal-main ul li {
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 10px 20px;
  list-style-type: disc;
}
/* モーダル 背景エリア */
#modal-bg {
  display:none;
  width:100%;
  height:100%;
  background-color: rgba(0,0,0,0.5);
  position:fixed;
  top:0;
  left:0;
  z-index: 999998;
}
.closeModal {
  position: absolute;
  top: -0.5rem;
  right: 2rem;
  cursor: pointer;
  font-size: 50px;
}


@media screen and (max-width:640px) {
#modal-open {
  font-size: 1.5rem;
}
#modal-main {
  display: none;
  width: 96%;
  height: 580px;
  overflow: auto;
  margin: 0;
  padding: 40px 15px;
  background-color: #ffffff;
  color: #000;
  position:fixed;
  z-index: 999999;
}

}