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

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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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.