十万火急:请CSS高手进来帮我排个版!(DIV+CSS)
HTML代码如下:   
  <html>  
  <head>  
  <style   type= "text/css "   media= "screen ">   	 
  </style>  
  </head>    
  <body>    
  <div   id= "d1 "> AAA </div>  
  <div   id= "d2 "> aaa </div>    
  <div   id= "d1 "> BBB </div>  
  <div   id= "d2 "> bbb </div>    
  <div   id= "d1 "> CCC </div>  
  <div   id= "d2 "> ccc </div>    
  <div   id= "d1 "> DDD </div>  
  <div   id= "d2 "> ddd </div>    
  </body>  
  </html>    
 这个HTML代码的显示结果为:   
 AAA 
 aaa 
 BBB 
 bbb 
 CCC 
 ccc 
 DDD 
 ddd   
 现在我想让这段HTML代码的显示结果变成:   
 AAA            BBB               CCC                  DDD   
 aaa            bbb               ccc                  ddd   
 要求不改变HTML代码,只能通过CSS文件来进行排版,请CSS方面的专家来帮我一下,项目紧张我真的很急!   
 谢谢了!
------解决方案--------------------try:     
  <body>    
  <div style= "float:left; ">  
  <div id= "d1 "> AAA </div>  
  <div id= "d2 "> aaa </div>  
  </div>    
  <div style= "float:left; ">  
  <div id= "d1 "> BBB </div>  
  <div id= "d2 "> bbb </div>  
  </div>    
  <div style= "float:left; ">  
  <div id= "d1 "> CCC </div>  
  <div id= "d2 "> ccc </div>  
  </div>    
  <div style= "float:left; ">  
  <div id= "d1 "> DDD </div>  
  <div id= "d2 "> ddd </div>  
  </div>  
  </body>