.img05wrap {
  position: relative;
}

.img05wrap-notebottom {
  position: absolute;
  bottom: 15px;
  left: 180px;
}

a.btn_demo {
  color: #fff;
  background-color: #a40c00;
  font-weight: bold;
  padding: 16px 20px;
  text-decoration: none;
  position: relative;
  display: block;
  font-size: 16px;
  width: 70%;
  margin: 0 auto;
}

a.btn_demo:hover {
  opacity: 0.6;
}

a.btn_demo span.caution {
  display: inline-block;
  font-size: 1rem;
  text-decoration: underline;
}

.fs80 {
  font-size: 80%;
}