Dynamicdeezign, documentation of html and css
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<ins> : inserted text
INS and DEL are used to markup sections of the document that have been inserted or deleted with respect to a different version of a document (e.g., in draft legislation where lawmakers need to view the changes).
These two elements are unusual for HTML in that they may serve as either block-level or inline elements (but not both). They may contain one or more words within a paragraph or contain one or more block-level elements such as paragraphs, lists and tables
-) cite
The value of this attribute is a URI that designates a source document or message. This attribute is intended to point to information explaining why a document was changed.
-) datetime
The value of this attribute specifies the date and time when the change was made.
Attributes defined elsewhere

-) id, class (document-wide identifiers)
-) lang (language information), dir (text direction)
-) title (element title)
-) style (inline style information )
-) onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup (intrinsic events )


<ins> the text </ins>


the text

For complete reference see html reference at W3C
RL..3   RL..4   RM..1   RM..2   RM..3   RM..4   RM..5   RN..1   RN..2   RN..3   RN..4   RN..5   RN..6   RN..7  
RN..8   RN..9   RN..10   RN..11   RN..12   RN..13   RN..14   RN..15   RN..16   RN..17   RN..18   RO..1   RO..2   RO..3  
RO..4   RO..5   RP..1   RP..2   RP..3   RP..4   RP..5   RP..6   RQ..1   RQ..2   RQ..3   RR..1   RS..1   RS..2  
RS..3   RS..4   RS..5   RS..6   RS..7   RT..1   RT..2   RT..3   RT..4   RT..5   RT..6   RT..7   RT..8   RT..9  
RT..10   RT..11   RT..12   RU..1   RU..2   RU..3   RV..1   RW..1   RX..1   RX..2   RY..1   RY..2   RZ..1