Set a div width, align div center and text align left

Question

I have a small problem but I can\'t get it solved. I have a content header of 864px width, a background image repeated-y and footer image. Now I have this

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Answer 1

Set auto margins on the inner div:

<div id="header" style="width:864px;">
    <div id="centered" style="margin: 0 auto; width:855px;"></div>
</div>

Alternatively, text align center the parent, and force text align left on the inner div:

<div id="header" style="width:864px;text-align: center;">
    <div id="centered" style="text-align: left; width:855px;"></div>
</div>

Answer 2

Try:

#your_div_id {
  width: 855px;
  margin:0 auto;
  text-align: center;
}

Answer 3

Use auto margins.

div {
   margin-left: auto;
   margin-right: auto;
   width: NNNpx;

   /* NOTE: Only works for non-floated block elements */
   display: block;
   float: none;
}

Further reading at SimpleBits CSS Centering 101

Answer 4

All of these answers should suffice. However if you don't have a defined width, auto margins will not work.

I have found this nifty little trick to centre some of the more stubborn elements (Particularly images).

.div {
   position: absolute;
   left: 0;
   right: 0;
   margin-left: 0;
   margin-right: 0;
}