#gasoline_price_calculation form .input_group:not(:last-child) {
  margin-bottom: 30px;
}
#gasoline_price_calculation form .input_group input[type=number] {
  padding: 1em;
  width: 100%;
  height: auto;
  font-size: 15px;
  box-sizing: border-box;
  border: solid 1px #ccc;
}
#gasoline_price_calculation form .btn_group {
  display: flex;
  justify-content: center;
}
#gasoline_price_calculation form .btn_group input[type=submit] {
  margin-right: 20px;
  max-width: 250px;
  width: 100%;
  height: 50px;
  color: #fff;
  font-size: 18px;
  border-radius: 5px;
  background-color: #f3a13f;
  cursor: pointer;
  transition: opacity 0.3s;
}
#gasoline_price_calculation form .btn_group input[type=submit]:hover {
  opacity: 0.7;
}
#gasoline_price_calculation form .btn_group input[type=reset] {
  max-width: 150px;
  width: 100%;
  height: 50px;
  color: #fff;
  font-size: 18px;
  border-radius: 5px;
  background-color: #999;
  cursor: pointer;
  transition: opacity 0.3s;
}
#gasoline_price_calculation form .btn_group input[type=reset]:hover {
  opacity: 0.7;
}

#result {
  display: none;
}
#result .table_wrap {
  margin-bottom: 40px;
}
#result .table_wrap .table_inner table {
  min-width: 360px;
}
#result .table_wrap .table_inner table tr th {
  width: 50%;
}
#result .table_wrap .table_inner table tr td {
  width: 50%;
}