Google debugging tool does not select the specific elements on the page.

Google debugging tool does not select the specific elements on the page.

Z-index problems

The default value of document is 0.

If this problem occurs, check whether the z-index:-1 is set for the background;

If this is set, all the content of the element to be set will be under the document and cannot be selected. Including links, Text Selection, and hover.

To solve this problem, remove the z-index:-1; in the background.

In sogou browser, can I select a page element but not a page?

This test is normal. Try to install the latest sogou expressway browser 3.2.
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IE Developer Tools, when selecting elements on the page, the page elements do not have a blue box

I have never encountered this problem. Try again with IE.