JSFiddle - React, Tailwind, and code Playground
HTML
<form>
Phone Number (format: xxxxxxxxxx):
<input type="tel" pattern="\([0-9]{3}\)[0-9]{3}-[0-9]{4}$" required >
<input type="submit" value="Submit">
</form>
<form>
Phone Number (format: xxxxxxxxxx):
<input type="tel" pattern="\([0-9]{3}\)[0-9]{3}-[0-9]{4}$" required >
<input type="submit" value="Submit">
</form>