Javascript: Parent element styling

I have same situation like here, but I don't want to write after, but to stylize parent element.

$(".test3").closest(".divouter").after("<div>Foo</div>");

This code from above works, but when I replace after with setAttribute or other st开发者_JS百科uff I'm getting below error:

TypeError: $(".test3").closest(".divouter").setAttribute is not a function

This is message for $(".test3").closest(".divouter").setattribute("style", "background-color:#DEDEDE;");

Could you help me?

Thanks and I'm sorry for my English, Przemek.

It's returning a jQuery object, not a DOM node. Which means you want jQuery's attr() method instead.

EDIT: You added some details and made it clear you want the css() jQuery method.

$(".test3").closest(".divouter").css("background-color", "#DEDEDE");