Видео ютуба по тегу Jquery Remove Css Class From All Child Elements

How to Add and Remove Classes for Child Elements with jQuery
How to Add and Remove Classes for Child Elements with jQuery
How to Add a Class to a Child Element in jQuery Without Affecting Others
How to Add a Class to a Child Element in jQuery Without Affecting Others
Clone and Remove All Child Elements with Javascript and JQuery (Free Source Code)
Clone and Remove All Child Elements with Javascript and JQuery (Free Source Code)