id The ID used to create the block and component. countdown label The label used for the block and the component. Countdown block Object to extend the default block, eg. { label: 'Countdown', category: 'Extra', ... }. Pass a falsy value to avoid adding the block. {} props Object to extend the default component properties., eg. { name: 'Countdown', droppable: false, ... }. {} style Custom CSS styles for the component. This will replace the default one. '' styleAdditional Additional CSS styles for the component. These will be appended to the default one. '' startTime Default start time, eg. 2030-01-25 00:00. '' endText Text to show when the countdown is ended. 'EXPIRED' dateInputType Date input type, eg. date, datetime-local 'date' labelDays Days label text used in component. 'days' labelHours Hours label text used in component. 'hours' labelMinutes Minutes label text used in component. 'minutes' labelSeconds Seconds label text used in component. 'seconds' classPrefix Countdown component class prefix. 'countdown'