A responsive coming soon web page template made with Boostrap 4. It can also store subcription email IDs in your Firebase cloud firestore.
Copy your firebase API credentails and replace the dumpy variable in firebase_configuration.js with your project credentials.
They can be found under Project overview -> web.
Next create a cloud firestore for your project. This can done through the firebase console(Database -> Cloud Firestore). Next create a collection called 'Emails'.
Currently the countdown timer counts to 30 days since the page was loaded. It can be easily made to count to another date by making a few modifications in 'countdown.js'
Replace
countDownDate.setDate(countDownDate.getDate() + 30);
with
countDownDate.setDate('January 17, 2019 03:24:00');