This is an example Contact Form with Dark Mode template built with HTML, CSS, Javascript. You can copy paste the code and use it in your project. You can also customize the template as per your needs.

This example uses Tailwind CSS for styling. Make sure you add Tailwind CSS to your project or replace it with bootstrap or other framework styles as needed.

Also, Make sure to change YOUR_ACCESS_KEY_HERE with your own access key generated from the home page.