2.2.40 [HTML] Section 17.7, The TEXTAREA element

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C0036:

The specification states:

 cols = number [CN] 
  
 Users should be able to enter longer lines than this, so user agents should provide 
 some means to scroll through the contents of the control when the contents extend 
 beyond the visible area. User agents may wrap visible text lines to keep long lines 
 visible without the need for scrolling.

All Document Modes (All Versions)

Users can enter lines longer than the value of the cols attribute. When the text is longer than the visible rows, Windows Internet Explorer wraps visible lines of text and adds a vertical scrollbar control.