if div with specific class has an iframe add another class to the div

Question

So, if div with class .activity-inner contains an iframe I would like to add a class mleft to the div

my code is:

$('.activity-inner:has(iframe)').addClass('mleft');

but it't not working, mleft class is not added to the div in cases where div with that class has an iframe

I guess there is a simple mistake but I can't find it, I don't have any visible javascript error

thanks

Answer 1

Try it with document ready. It is work for me. Check scripts position on webpage. https://jsfiddle.net/xted1666/1/

$( document ).ready(function() { $('.activity-inner:has(iframe)').addClass('mleft'); });