sizeString(default: undefined)
Controls the overall physical size of a button. Valid values are: "small", "medium", and "large". When undefined (the default), the theme controls the default size.
The
"none"value is deprecated. Use custom CSS to customize the size.
Example
<button id="button" type="button">Cancel</button>
<script>
$("#button").kendoButton({
size: "large"
});
</script>