Always Enable Resend & Submit Buttons

I need a Javascript and jQuery code that will continuously enable the "Resend" and "Submit" buttons on an online webpage. In addition, all other buttons on the page will also need to be enabled.

Key Requirements:
- The code should ensure that the "Resend" and "Submit" buttons are always enabled.
- All buttons on the webpage should be enabled.

Ideal Skills and Experience:
- Proficiency in Javascript and jQuery is essential.
- Prior experience with enabling buttons on a webpage is desirable.
- Ability to write succinct, effective code.
Sample:
<button type="button" id="btnCOTPResend" class="stylebutton" style="visibility: visible; font-size: 2.5em; padding: 0.5rem 1rem;">
Resend</button>

<button type="button" id="btnCOTPSubmit" class="stylebutton" style="visibility: visible; font-size: 2.5em; padding: 0.5rem 1rem;">
Submit</button>