html - DIV center align -

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I have a div, which has an alliance with all the content centers: 

  & lt ; Div align = "center" & gt; & Lt; Table & gt; & Lt; Tr & gt; & Lt; Td> .....

But alignment is not a more valid feature, therefore, I have changed to class or genre:

But this is not the same as before. The table is now aligned to the left and not for the center. Clear text-alignment is not equal to the old center feature. How do I write style to get the same functionality as the first with the middle attribute?

simply margin: 0 auto your table Centered on

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