we have the following code which is a html5 select dropdown menu:
<!doctype html>
<select name="indexCombobox1">
<option selected value="null"> Sort By:</option>
<option value="most_recent"> Most Recent</option>
<option value="most_popular"> Most Popular</option>
<option value="featured"> Featured</option>
</select>
is there a data attribute that can set the drop down background transparent so that you can see what's behind the drop down menu? is there a data attribute that changes the option highlight from default blue to a different color, e.g. yellow?