How do you easily horizontally center a <div> using CSS?

Question

I'm trying to horizontally center a <div> block element on a page and have it set to a minimum width. What is the simplest way to do this? I want the <div> element to be inline with rest of my page. I'll try to draw an example:

page text page text page text page text
page text page text page text page text
               -------
               | div |
               -------
page text page text page text page text
page text page text page text page text

Answer 1

In the case of a non-fixed width div (i.e. you don't know how much space the div will occupy).

#wrapper {
  background-color: green; /* for visualization purposes */
  text-align: center;
}
#yourdiv {
  background-color: red; /* for visualization purposes */
  display: inline-block;
}

<div id="wrapper">    
    <div id="yourdiv">Your text</div>
</div>

Keep in mind that the width of #yourdiv is dynamic -> it will grow and shrink to accommodate the text inside it.

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