/* ホームへ戻るボタン */
.btn-square {
  font-size: 24px;
  position: relative;
  display: inline-block;
  font-weight: bold;
  padding: 0.5em 1.5em;
  text-decoration: none;
  color: #FB7D79;
  background: #ECECEC;
  border-radius: 15px 15px 15px 15px;
  transition: .4s;
}

.btn-square:hover {
  background: #636363;
  text-decoration: none;
}

.btn-left-radius {
  font-size: 24px;
  position: relative;
  display: inline-block;
  font-weight: bold;
  padding: 0.5em 1.5em;
  text-decoration: none;
  color: #AE9890;
  background: #ECECEC;
  border-radius: 15px 0 0 15px;
  transition: .4s;
}

.btn-left-radius:hover {
  background: #636363;
  text-decoration: none;
}

.btn-right-radius {
  font-size: 24px;
  position: relative;
  display: inline-block;
  font-weight: bold;
  padding: 0.5em 1.5em;
  text-decoration: none;
  color: #AE9890;
  background: #ECECEC;
  border-radius: 0 15px 15px 0;
  transition: .4s;
}

.btn-right-radius:hover {
  background: #636363;
  text-decoration: none;
}