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Is html deprecated?

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清酒与你
清酒与你 2021-01-01 12:45

i\'m looking at the W3Schools demo of using the element to align columns:


        

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 no longer appears in HTML5. Says the spec!
Also, it's worth noting that you can't achieve a similar result using CSS on the 
 tag. The style attribute (or induced style from id, class, etc.) only takes into account properties that sensibly apply to the column itself. That is, while each  element does not contain text and thus none of the text-level styles apply. (Block-level stuff like background-color still works.)
However, in basic cases not involving colspan or rowspan, you can select blocks of 

  

        
      
      
      


 can contain text content and thus can have attributes like text-align set, the 



s (and thus "columns" in a sense) by using the CSS pseudo-class :nth-of-type. E.g. to center the third column of the table with class c3 use



table.c3 td:nth-of-type(3) { text-align: center; }







Edit by OP:



From The HTML Standard:




  
15 Obsolete features

  15.2 Non-conforming features  

  
  
The following attributes are obsolete (though the elements are still part of the language), and must not be used by authors:
  ...

  align on col elements

  ...  

  
  
   Use CSS instead.





The WHATWG wiki gives some recommended alternatives for various obsolete presentational attributes:





Attribute              CSS equivalent
=====================  =====================================
align on col elements  'text-align' on the appropriate td/th




    

             

                                                        

            
            

              
                
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