URL: https://www.knihyprekazdeho.sk/vysledky-vyhladavania?searchterm=love

Browser / Version: Firefox Nightly 61.0a1 (2018-04-04)
Operating System: Linux Ubuntu 16.04
Tested Another Browser: Yes

Problem type: Design is broken
Description: Multiple arrows are displayed overlapped for the drop-down menus
Steps to Reproduce:

1. Navigate https://www.knihyprekazdeho.sk/vysledky-vyhladavania?searchterm=love
2. Observe drop-down menus.

Expected Behavior:
Single arrow is displayed.

Actual Behavior:
Multiple arrows are displayed overlapped.

Note:

1. Reproducible on Firefox 59.0.2 Release.
2. Not reproducible on Chrome 65.0.3325.162.
3. Screenshot attached.
4. Affected area:

<div class="select-styled">
	<select name="ctl00$cphContent$ddlPS" onchange="javascript:setTimeout('__doPostBack(\'ctl00$cphContent$ddlPS\',\'\')', 0)" id="ctl00_cphContent_ddlPS" class="form-control">
		<option selected="selected" value="20">20</option>
		<option value="32">32</option>
		<option value="44">44</option>
	</select>
</div>

Watchers:
@softvision-sergiulogigan
@softvision-oana-arbuzov

sv; country: sk

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