The Google debugging tool cannot select specific elements of the page when selecting elements_html/css_WEB-ITnose

Z-index problem

The default value of document is 0.

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

If this is set, the contents of all set elements will be under the document and cannot be selected. Including that there will be no link clicking, text selection, hover and other effects.

So the way to solve this problem is to remove the z-index:-1; of the background.