CSS property: -webkit-user-modify
    Description
Determines whether a user can edit the content of an element.
This is closely related to the contentEditable attribute.
Syntax
-webkit-user-modify: read-only | read-write | read-write-plaintext-only;
Values
- read-only
- The content is read-only. 
- read-write
- The content can be read and written. 
- read-write-plaintext-only
- The content can be read and written, but any rich formatting of pasted text is lost.