el4x6 {
    height:246px;
    width:378px;
  }  
  .panel4x7 {
    height:246px;
    width:442px; 
  }  
  .panel4x8 {
    height:246px;
    width: 506px;
  }      
  div {
    border-radius: 6px;    
    border-width: 1px;
    border-style:solid;
    border-color: #333333 #333333 #222222 #333333;
    float:left; 
    margin: 1px 1px 1px 1px; 
    background: linear-gradient(#222222, black);
  }


</style>
</head>
<body><!-- At 1344x768, there are 21x12 panel blocks (64 pixels) -->
<!-- Row 1 -->
<div><ifra