How to add a space between the header subtitles and the drop down menu

Site URL: https://www.sumofeight.com/

So

I am trying to add a space between the 'all styles' drop down link and 'shop clothing system' heading. Every time i use code it seems to add spacing between the drop down menu headings as well, which i don't want. Can anyone help me? I want to add about double what is there now.