When rendering the <html> element, the used values of CSS properties “writing-mode”, “direction”, and “text-orientation” on the <html> element are taken from the computed values of the <body> element, not from the <html> element’s own values. Consider setting these properties on the :root CSS pseudo-class. For more information see “The Principal Writing Mode” in https://www.w3.org/TR/css-writing-modes-3/#principal-flow
呈现 <html> 元素时，<html> 元素的 CSS 属性“writing-mode”，“direction”和“text-orientation”所用的值取自 <body> 元素的计算值，而不是 <html> 元素本身的值。请考虑在 :root CSS 伪类上设置这些属性。更多信息请参阅“主要书写模式（The Principal Writing Mode）”：https://www.w3.org/TR/css-writing-modes-3/#principal-flow