.mtable {
         position:fixed;
         margin:0;
         top:0;
         left:0;
         /*border: 1px solid black;*/

     }

     table {
            position: absolute;
            top:0;
            left:0;
            background-color:pink;
             width: 1500px;
             border-collapse:collapse;
             margin:0;
             }
      
  th,td {
         padding: 12px;
         text-align:left;
         }