Make a single dropdown menu open to the right in Semantic UI -

the semantic ui dropdown documentation gives examples of dropdowns open left , right. however, of examples given show parent dropdown opens downwards, items of dropdown being dropdown open left or right. trying create vertical menu, each element of dropdown opens right. vertical menu should not dropdown. have tried many combinations of arranging menu, right, dropdown classes , cannot work. possible?

ok, i've discovered semantic automatically if place dropdowns in vertical menu:

<div class="ui vertical menu">   <div class = "ui dropdown item">     <span class="text">prompt</span>     <div class="item">...</div>     ...