The calendar's appearance is controlled by the built-in visual styles or the CSS styles. The calendar visual styles effects the appearance of all of the calendar elements such as the navigation buttons, preview buttons, month title, month area, etc.

C1Calendar is designed to make customization easy for you. You have endless possibilities in changing its default appearance.

You can apply CSS styles to modify C1Calendars elements. C1Calendar provides many built-in CSS Selectors that appear when you select the drop down arrow next to the C1Calendar.CSSClass property.