REMOVE ALL CLASSES OF ALL APGE

REMOVE ALL CLASSES OF ALL APGE

It took days and days trying to fix something but do not know how. In my
index.html page I have many divs with a class called "input". I need to
remove this class of all divs when the browser window is less than 960
pixels. Here is my code:
$(window).resize(function() {
if ($(window).width() > 960) {
$("div").removeClass("input");
}
});
In advance thank you very much for your help. And excuse me for asking a
question as a beginner, but can not find a solution.
Sorry for my English.