* {
  box-sizing: border-box;
}

.himaWrap {
  width: 90%;
  max-width: 500px;
  min-height: 400px;
  margin: 0 auto;
  padding: 10px;
  border: 1px solid #ccc;
  font-size: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.himaWrap form {
  margin: 30px 0;
  display: flex;
}
.himaWrap form .inputNumber {
  width: 180px;
  height: 50px;
  margin-right: 4px;
  padding: 6px;
  font-size: 1.2em;
}
.himaWrap form .submitBtn {
  display: block;
  width: 60px;
  height: 50px;
  padding: 6px;
  font-size: 1em;
  color: #fff;
  background-color: #228b22;
  cursor: pointer;
}
.himaWrap form .submitBtn:hover {
  opacity: 0.9;
}
.himaWrap .message {
  width: 90%;
  height: 120px;
  font-size: 1.4em;
  line-height: 1.8;
  margin: 0 0 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.himaWrap .message p {
  margin: 0;
}
.himaWrap .clearBtn {
  display: block;
  width: 70%;
  min-height: 50px;
  margin: 0 auto;
  padding: 10px;
  font-size: 1.2em;
  color: #fff;
  background-color: #228b22;
  border: 2px solid #100600;
  cursor: pointer;
}
.himaWrap .clearBtn:hover {
  opacity: 0.9;
}
.himaWrap .clearBtn.hide {
  display: none;
}