.div-a  {
height:25%;
}
 
.div-a 
 table {border:0;
 margin:25px;}
 .div-a  table td {border:0;}
        
        .div-b {width:1240px;margin:0px 5px 15px 30px}
        .div-b table { boder:0;
        }    
        .div-b  table tr:nth-child(even){background:#F0F0F0;         
              font-size:30px;
              margin: 0px auto;
              margin-bottom: 20px;
              border: 0;
              width: 98%;
               }
         .div-b table tr{height:40px; }
         .div-b table td{border:0;}

.div-c {
        margin:0px 5px 15px 30px;
        border-style: solid;
        border-color:black;
        border-width:1px 1px 1px 1px;
        height:100%;width:1300px;
}