Describe the bug
The contribution button on the main page is not functioning.

To Reproduce
Steps to reproduce the behavior:

1. Go to the main page of the website.
2. Attempt to click on the button.
3. Notice that nothing happens when the button is clicked.
4. See error

Expected behavior
The button should trigger a specific action or behavior when clicked, such as navigating to another page or executing a JavaScript function.

Additional context
The issue appears to be related to the z-index of a div element on the main page, which is set to -1. This causes the div to be hidden beneath the body element, preventing interaction with the button.