Questions about html css level_html/css_WEB-ITnose

Please tell me how to make z-index always at the top level and not be overwritten

Reply to the discussion (solution)

The number setting is large point.

For the setting of z-index, if there is a parent element, you must also set the z-index of the parent element to be larger. If the parent of the parent has position:relative; it will penetrate under IE7 In other words, it is not recommended to nest position:relative within position:relative.