Center The position: Fixed Div

First look at the effect:
Http://www.keleyi.com/keleyi/phtml/fixedcenter.htm

KeyCodeYes: # topmenu_keleyi_com {position: fixed; left: 0px; Right: 0px; width: 706px; margin-left: auto; margin-Right: auto ;}

Complete code:

 <!  Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"  >  <  Html  Xmlns  = "Http://www.w3.org/1999/xhtml"  >  <  Head >  <  Title  > Center The position: Fixed div-ke leyi </  Title  >  <  Style  Type  = "Text/CSS"  >  # Topmenu_keleyi_com  {  Position :  Fixed  ;  Left  :  0px  ;  Right  :  0px  ;  Width :  706px  ;  Margin-left  :  Auto  ;  Margin-Right  :  Auto  ;  Top :  100px  ;  Height  :  50px  ;  Background-color  :  Red  ;  } # Topmenu_keleyi_com Li  {  Float  :  Left  ;  List-style  :  None  ;  Margin-Right  : 1px  ;  Width  :  Pixel PX  ;  Background-color  :  # E0f0e0  ;  }  # Topmenu_keleyi_com ul {  Margin  :  0px  ;  Padding  :  0px  ;  }  Body  { Margin  :  0px  ;  }  </  Style  >  </  Head  >  <  Body  >  < Div  ID  = "Topmenu_keleyi_com"  >  <  Ul  > <  Li  > <  A  Href  = "Http://www.keleyi.com/menu/net"  Target  = "_ Blank"  > . Net </ A  > </  Li  >  <  Li  > <  A  Href  = "Http://www.keleyi.com/menu/javascript"  Target  = "_ Blank"  > Javascript </  A  > </ Li  >  <  Li  > <  A  Href  = "Http://www.keleyi.com/menu/jquery"  Target  = "_ Blank"  > Jquery </  A  > </  Li  >  < Li  > <  A  Href  = "Http://www.keleyi.com/menu/csharp"  Target  = "_ Blank"  > C # </  A  > </  Li  >  <  Li  > <  A Href  = "Http://www.keleyi.com/menu/other"  Target  = "_ Blank"  > Others </  A  > </  Li  >  <  Li  > <  A  Href  = "Http://www.keleyi.com /" Target  = "_ Blank"  > Homepage </  A  > </  Li  > </  Ul  >  <  BR  />  Position: The Center effect of the fixed Div. Change the page width.  </  Div  > </  Body  >  </  Html  > 

This article Reprinted from Ke leyi: http://www.keleyi.com/a/bjac/326830ffb40fada9.htm