Hi, 

I would like to make the Portfolio Filter Dropdown Menu sortable.

I used the following code to show all the filters and center them :

.portfolio-filters-inline ul ul {
display: list-item !important;
text-align: center;
}

but all my sub-categories appear below the main categories, and on separated lines. Is there a way to make that second level appear based off what (main) category we select? And also centered but at the same level/on one line?

---

For example :

A is a category, with a1 and a2 as sub-categories,
and B is another category with b1 and b2 as sub-categories

Right now they appear as follow : 

        A     B

           a1  

           a2  

           b1  

           b2

I would like to have :

A    B

Then, when we click on A we see : 

        A     B

       a1   a2   

I hope this makes sense. 
Thank you for you help.