.bg01 {
  text-align: center;
  margin: 0 auto;
  background-color: #3DA1CD;
  padding: 0;
}

.bg02 {
  text-align: center;
  margin: 0 auto;
  background-color: #C1D6E8;
  padding: 3% 0;
}

.bg03 {
  text-align: center;
  margin: 0 auto;
  background: linear-gradient(to bottom, #C1D6E8 0%, #C1D6E8 50%, #3DA1CD 50%, #3DA1CD 100%);
  padding: 3% 0;
}

.bg04 {
  text-align: center;
  margin: 0 auto;
  background-color: #3DA1CD;
  padding: 3% 0;
}

.bg05 {
  text-align: center;
  margin: 0 auto;
  background: linear-gradient(to bottom, #3DA1CD 0%, #3DA1CD 50%, #C1D6E8 50%, #C1D6E8 100%);
  padding: 3% 0;
}

.btn-field {
  position: relative;
  width: 100%;
  display: flex;
  flex-flow: row wrap;
  justify-content: space-between;
  padding: 0 15px;
}

.btn-img {
  width: 30%;
}

.caution {
  border: #FF0000 1px solid;
  padding: 5px;
  color: #FF0000;
}