Categories menu. Wrong layout

-- HikaShop version -- : 3.0.1
-- Joomla version -- : 3.6.5
-- PHP version -- : 5.6

I placed the categories menu on the left (but the result is the same on the right) and the layout is absurd. All words are aligned in a vertical.
CSS issue? How to fix?

Hello,

I'm sorry but HikaShop 3.1.1 is not a valid version number.
Please provide correct and accurate information when you create a post.
Thank you for your understanding.

For customization and CSS ; we have that documentation page :
www.hikashop.com/support/documentation/1...the-display.html#css

Regards,

With your answer do you mean this is the standard layout ?

Hello,

No, it means that it is related to CSS which is not HikaShop CSS.
There is nothing in HikaShop CSS to perform a vertical display like that.

Regards,