#tax_calculation form#tax_calculation_form .input_group {
  padding: 30px 20px;
  background-color: #ddd;
  box-sizing: border-box;
  border-radius: 5px;
}
#tax_calculation form#tax_calculation_form .input_group:not(:last-child) {
  margin-bottom: 30px;
}
#tax_calculation form#tax_calculation_form .input_group input[type=number] {
  margin-right: 15px;
  padding: 1em;
  width: 100%;
  height: 100%;
  font-size: 15px;
  box-sizing: border-box;
  border: solid 1px #ccc;
}
#tax_calculation form#tax_calculation_form .input_group .unit_label {
  font-weight: bold;
}
#tax_calculation form#tax_calculation_form .input_group label {
  position: relative;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  display: block;
}
#tax_calculation form#tax_calculation_form .input_group label:after {
  content: "";
  position: absolute;
  top: 0px;
  right: 0px;
  width: 25px;
  height: 100%;
  display: block;
  border-top: solid 1px #ccc;
  border-right: solid 1px #ccc;
  border-bottom: solid 1px #ccc;
  border-top-right-radius: 5px;
  border-bottom-right-radius: 5px;
  background-color: #429ce6;
  box-sizing: border-box;
  background-image: url(./img/arrow.png);
  background-repeat: no-repeat;
  background-position: center center;
  pointer-events: none;
}
#tax_calculation form#tax_calculation_form .input_group label select {
  padding: 0px 30px 0px 1em;
  width: 100%;
  height: 50px;
  font-size: 15px;
  color: #000;
  background-color: #fff;
  border-radius: 5px;
  border: solid 1px #ccc;
  cursor: pointer;
}
#tax_calculation form#tax_calculation_form .flex_group {
  display: flex;
  align-items: center;
}
#tax_calculation form#tax_calculation_form .btn_group {
  display: flex;
  justify-content: center;
}
#tax_calculation form#tax_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;
}
#tax_calculation form#tax_calculation_form .btn_group input[type=submit]:hover {
  opacity: 0.7;
}
#tax_calculation form#tax_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;
}
#tax_calculation form#tax_calculation_form .btn_group input[type=reset]:hover {
  opacity: 0.7;
}

#result {
  display: none;
}
#result .table_wrap .table_inner {
  margin-bottom: 5px;
}
#result .table_wrap .table_inner table {
  min-width: 360px;
}
#result .table_wrap .table_inner table tr th {
  width: 50%;
  line-height: 1.5rem;
}
#result .table_wrap .table_inner table tr td {
  width: 50%;
}