The control refresh it's width on hover/focus/blur/disable/enable, however if you use CSS selector with higher specificity of these coming from the skin, you still will override the width.
If you like to make it like the month year picker in the Calendar, you could use RadCalendar in our page and hide its rcMain
table. This way you will see only the header and will be able to click on the date to select month.
the Telerik team
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