Не работает ли CSS cal c в ячейке таблицы? Если вы измените 90px на любой размер (например, 1px), отличный от 0, все будет выглядеть одинаково. Мы можем вычислить 800 * .4 - 90 - это 230, и, похоже, ничего из того, что я делаю с cal c, не подходит для этого числа.
Я пытаюсь сделать так, чтобы оба столбца p были 50% размера таблицы минус 90 пикселей, который использует столбец t
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<style>
table { width: 800px; }
.t { width: 90px }
.p {
width: calc(40% - 90px);
-width: 230px;
}
</style>
<table>
<tr>
<td class="t">Thing_____</td>
<td class="p">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with
desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</td>
<td class="t">Thing_____</td>
<td class="p">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.
It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with
desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</td>
</tr>
</table>
</body>
</html>