Use the disabled attribute to disable an element. The attribute can be used for the following elements: <button>, <input>, <select>, <textarea>, etc.
Example
You can try to run the following code to implement disabled attribute −
<!DOCTYPE html> <html> <body> <p>Which sports do you like?</p> <form action = "" method = "get"> <input type = "checkbox" name = "vehicle" value = "football" checked> Football<br> <input type = "checkbox" name = "vehicle" value = "cricket" checked> Cricket<br> <input type = "checkbox" name = "vehicle" value = "hockey"> Hockey<br> <input type = "submit" value = "Submit" disabled> </form> </body> </html>