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<title>CSS Writing Modes: parsing text-combine-upright with digits plus calc() computing to valid digits</title>
<link rel="author" title="Masataka Yakura" href="http://google.com/+MasatakaYakura">
<link rel="help" href="http://www.w3.org/TR/css-writing-modes-4/#text-combine-upright">
<link rel="help" href="http://www.w3.org/TR/css-values-3/#calc-notation">
<meta name="assert" content="User Agents support text-combine-upright with values `digits calc(...)