How to align the RadzenDropDown components start with the "placeholder" position?

Radzen.Blazor Components
1

Click RadzenDropDown, the component list sometimes start with the right position ("Select..."), sometimes it starts with the up corner position... How to make it always start with the RadzenDropDown position?

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2

I suggest you search online how to vertically align HTML elements with CSS. Probably it is easiest with display:flex; alignItems: center applied to a parent HTML element.