Describe the bug:-

The value in the truth table generator input is not visible.

To Reproduce

Steps to reproduce the behavior:

1. Go to 'https://learn.circuitverse.org/docs/logic-design/canonical.html'
2. Scroll down to 'Truth Table Generator'
3. Enter some value in the input box.
4. See the error

Expected behavior

A clear and concise description of what you expected to happen.
We need to change the color of the input value so that it should be visible properly.

Screenshots

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Desktop (please complete the following information):

• OS: Windows 10
• Browser: Chrome
• Version [e.g. 22]

Additional context

Add any other context about the problem here.