.bg01 {
  text-align: center;
  margin: 0 auto;
  background-color: #EEE3DB;
}

.bg02 {
  text-align: center;
  margin: 0 auto;
  background-color: #E6D5BD;
}

.btn-group {
  margin-right: auto;
  margin-left: auto;
}

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

.btn-img {
  width: 30%;
}

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

.red {
  color: #FF0000;
}