Width of Filter Field

Hi,

I need to change filter width (see attached screenshot, where filters are overlapping due to its wide width).
I tried to look through all CSS files and all over the forum, but could not find out how.

Clearly, there is property select {width: 220px;} but I can't locate it.

Can you help me?

The issue of overlapping filters comes under all PC browsers, such as Google Chrome, IE and Firefox. However, filters have a normal width under Safari browser from iPad.

-- url of the page with the problem -- : www.freshfash.com.ua/products/categories/top
(the screenshot is from my test site, which has smaller width for products module. But I provide the above link just in case you need to see code of filters. The above link has no overlapping filters, but anyway how can I change their width?).
-- HikaShop version -- : 2.2.0
-- Joomla version -- : 3.1.5

Very sorry. I have already managed to do this thanks for tricks from other topic:

.hikashop_filter_filter_2 select{
width: 180px !important;
}