[Plugin: JQuery Accordion Menu Widget] Horizontal is crooked

Hi,
great plugin !
I try to make it work in horizontal position.
I’s look great you can check it here
https://wasterecords.com/test/boutique/

I love the way that the whole content move down when rollover..
But unfortunately you can see “colections” and “boutique” menu item are pushing the next item a little to the right, cause child item are bigger than parent item.

Does someone can help me to avoid that..?
Thanks!

https://www.ads-software.com/extend/plugins/jquery-vertical-accordion-menu/