'i used Grid , flex-box, react-router, joi-browser form validation'

I struggled a lot with this website, more especially on the form select dropdown, i could not style it, i dont know how it should be done. I also struggled alot with the timer countdown, but i tried.

I use this tools React react-router joi-browserfor validating the form inputs Grid flex-box react-toastify form poping up success form submission

PLEASE DO SEND ME FEED BACK, IT WILL BE APPRICIATED