body { 
text-align: center;
} 
  
#container { 
  width: 1000px; 
  margin: 0 auto;  
  padding: 0;
  text-align: left;
  } 
  
#leftside { 
  float: left; 
  clear:left;
  width: 200px; 
  margin: 0 0 0 5px; 
  padding: 10px 0 0 0;
  } 

#rightside { 
  float: left; 
  width: 200px;
  margin: 0; 
  padding: 10px 0 0 0;  
  } 
 
#content { 
  text-align : center; 
  float: left; 
  width: 580px; 
  padding: 10px 0 0 0;  
  margin: 0 10px 0 0;
  } 
   
.clear { 
  clear: both; 
  } 
  
#footer { 
  text-align: center; 
  float: right; 
  width: 1000px; 
  }