img {
   width: auto ;
   max-width: 100% ;
   height: auto ;
 }
 
 table.center {
    margin-left:auto; 
    margin-right:auto;
  }
 table#table1 {
    width:72%; 
    margin-left:14%; 
    margin-right:14%;
  }
  table#table2 {
    width:70%; 
    margin-left:15%; 
    margin-right:15%;
  }
 panel#panel1 {
    width:70%; 
    margin-left:15%; 
    margin-right:15%;
  }