ine-upright: digits calc(4 / 2);
}

#valid_digits_calc_4_dividedby_2 {
  text-combine-upright: digits calc(6 / 2);
}

#valid_digits_calc_24_dividedby_3_dividedby_2 {
  text-combine-upright: digits calc(24 / 3 / 2);
}

</style>
</head>
<body>

<div id="valid_digits_calc_1_plus_1"></div>
<div id="valid_digits_calc_1_plus_1_plus_1"></div>
<div id="valid_digits_calc_2_plus_2"></div>
<div id="valid_digits_calc_4_minus_2"></div>
<div id="valid_digits_calc_6_minus_3"></div>
<div id="valid_digits_calc_7_minus_1_min