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CSS How to Make a Website CSS: Cascading Style Sheets Center the Wrapper

What does auto do?

wrapper {

margin:0 auto;


Hey, Does anyone know what the auto does? Does it centre the div with the id wrapper on the page? Thanks.

3 Answers

since it is the second value on the margin it sets the left and right values to auto. That makes the two margins (left and right) to exactly the same therefore centering the wrapper in this case.

It resets the <div> wrap.

thank you Alex