Today, every browser will be able to create such an element.

今天的任何浏览器都能创建这样一个元素。

youdao

I have also heard If it is the sort of material you would expect to display in a browser, use element content.

我也听说过如果是希望在浏览器中显示的那类材料，就使用元素内容。

youdao

The second styling rule positions the embedded ul element outside of the browser viewport using the left: -999em; style so they cannot be seen.

第二个样式规则使用left： - 999 em；样式将嵌入的UL元素定位到浏览器窗口的外边，使用户看不到它们。

youdao

By default this is on, but if you click it, all the toolbar elements on IE become movable so you can put the toolbar of your choice, or any element of the browser where you like.

BBC: [an error occurred while processing this directive]