Center a block element without knowing its width

Centering an element may seem quite simple thinking that “text-align:center” will solve the problem. Or maybe set “width” and “margin: 0 auto”, but what happens when you need to center a block element with variable width?

In this article you'll learn how to center a block element with variable width.

By default div has auto width

W3C tells us that we can use "margin: 0 auto" to center tables so why shouldn't we use display: table to center a fluid div:

div.my-element {
  display: table;
  margin: 0 auto;
}

This can solve many problems and does a good job in some cases but you must be aware that "display: table" is not working when using our "beloved" Internet Explorer (IE5.5, IE 6, IE 7) so don't count on this for main design elements (especially if this ruins your design).

I hope this was usefully for you! If you have any comments or suggestions, do not hesitate to post them in the comments section.

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