height/  
width/

      
   
,   
.
    , 
    
   .

  [width]

 width   
  .

     
 :

div.box {
width: 200px;
border: 1px solid black;
background: orange;
}

  [height]

 , ,  
 ,  
  
  .
   
  height. 
   
   
 500px:

div.box {
height: 500px;
width: 200px;
border: 1px solid black;
background: orange;
}


 9, 10, 11  12  
    
CSS.  , , 
,   

  . 
    
   
HTML   , 
   CSS 
    
   
    
  
 W3C.
 
