javascript - CSS:hover for touchscreen reverse engineering -

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i've found this site has sub-menu works fine on iphone/pad , i’m curious how made li:hover ul{ work touch screen?

i've looked through entire html, css, js , nothing stands out if cluey can have peak i’d interested in find.

i had same problem school website (www.harveygs.kent.sch.uk) servicepoint site gave me answer - add "<a href='#'>(your menu header)</a>" after first <ul> in menus.


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