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The method of horizontally vertical centering of an absolutely positioned element

Source: Internet
Author: User
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This paper mainly introduces the method of horizontal vertical centering of the absolute positioning element, there are 3 methods to be used for reference, friends need to see it together

1.CSS Implementation Center

Disadvantage: You need to know the width and height of the element in advance.

<!doctype html>




2, CSS3 to achieve horizontal vertical center


Note: Regardless of the size of the element, it can be centered. However, IE8 above is compatible with this notation, mobile can be ignored.




<!doctype html>




3, Margin:auto to achieve the center




<!doctype html>

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