This warning indicates that a redundant element was detected in an expression.

此警告意味着在表达式中检测到冗余元素。

youdao

Then, suppress the display of the h2 element inside each tabbed section; these headings would be redundant inside your new interface, where they'd restate the text label on the TAB.

然后，在每个选项卡中禁止显示h 2元素；在新界面中，这些标题会显示为选项卡的文本标签，所以不需要重复显示。

youdao

Omit all redundant namespace declarations (those that have already been declared in an ancestor element, and have not been overridden).

省略所有多余的名称空间声明(已经在祖先元素中声明而且没有被改写的名称空间)。

youdao