Simple drop down that opens on hover

dropdown.js

jQuery(function () {

  var timer = 0,
    delay = 350;

  $(".dropdown").hover(function () {
    clearTimeout(timer);
    $(this).addClass("active").find("ul").show();
  }, function () {
    timer = setTimeout(function () {
      $(".dropdown").removeClass("active").find("ul").hide();
    }, delay);
  });

});