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<!DOCTYPE html> <html> <head> <title>Character Limit Text Box</title> <script> function limitCharacters() { var textbox = document.getElementById("message"); var charCount = document.getElementById("charCount"); charCount.textContent = textbox.value.length; if (textbox.value.length > 3000) { textbox.value = textbox.value.substr(0, 3000); charCount.style.color = "red"; } else { charCount.style.color = "black"; } } </script> </head> <body> <textarea id="message" rows="10" cols="40" oninput="limitCharacters()"></textarea> <p>Character Count: <span id="charCount">0</span> / 3000</p> </body> </html>