height of box of class "ui-dropdownchecklist-dropcontainer-wrapper" is big for some cases

the height seems better but for filters with many options the box will become to big

you can probably have a condition where when the options are more than say 10 you include the 256px height and it gives scrollbars

otherwise you don't give a height to the container and it gets an height auto calculated

an alternative would be within the views configuration to allow the user to specify height or leave empty (auto height)

Another option would be to preserve the id from the original fields so someone could at least use CSS and change the heights of individual dropdownlists that are big

here is a javascript based solution for sexyexposed.js

Drupal.behaviors.sexyExposed = function (context) {
  var settings = Drupal.settings.sexyExposed;
  $.each(settings, function (key, element) {
    if($(element).children().size() < 8)
      $(element).dropdownchecklist();
    else
      $(element).dropdownchecklist({maxDropHeight: 256});
  });
};

when there are less than 8 options then no height is given
more than 8 height is limited and scrollars appear

it would be nice to make the number of options configurable