Thanks for the clarification. In this scenario the Icenium simulator (note that it is not emulator) is misleading you as it does not reflect the actual look of the Kendo UI dropdownlist widget.
About your inquiry - currently such scenario is not supported. You would have to use HTML 5 <select> or the Kendo UI combobox widget. Note that the latter behaves differently than a regular dropdownlist and might not be suitable for you.
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