javascript - Jquery/JS : How to prevent scrolling in parent element while the child is scrollable (mobile)? -


i need enable scrolling in child element , disable parent elements. default when child scrolling on parent starts scroll, wish prevent default.

i wrote following code , don't understand why wrong

document.body.addeventlistener('touchmove', function(e){     if (body.hasclass('sliding-menu-open')) {         if (e.target.id == 'masc') {             e.preventdefault();         }         else{             e.stoppropagation();         }     } });

in other words, if body has 'sliding-menu-open' class , target's id not 'masc', prevent scrolling ability of parents.

i sure e.stoppropagation() trick, doesn't.

anyone?

edit: i've created new sidebar website, fixed top right. has lot of content, therefore need scrollable. when sidebar open want prevent content of page scroll.
hope it's clear enough understand problem.

answer:
solution adding overflow: hidden, problem have been adding css body, parent or document, when should add 'html' tag.

thank's help!

try adding overflow:hidden on parent element when body has class sliding-menu-open

.sliding-menu-open .parent {     overflow:hidden; }

if need more help, please provide example of html structure or example jsfiddle


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