.heading  table{
  border: 1px solid black;
    border-collapse: collapse;
}
.heading  th{
  border: 1px solid black;
    border-collapse: collapse;
    padding:5px;
}
.heading  td{
  border: 1px solid black;
    border-collapse: collapse;
    padding:5px;
}

.format  th{
  border: 3px dotted red;
    padding:5px;
}
.format  td{
  border: 3px dotted red;
    padding:5px;
}

.e1  table{
  border: 3px solid blue;
}
.e1  th{
  border: 1px solid purple;
    border-collapse: collapse;
    padding:5px;
  background-color: grey;
}
.e1 td{
  border: 1px solid purple;
    border-collapse: collapse;
    padding:5px;
}

.e3  table{
  border: 1px solid black;
}
.e3  th{
  border: 3px solid white;
    border-collapse: collapse;
    padding:3px;
  background-color: black;
  color:white;
}
.e3 td{
  border: 3px solid black;
    border-collapse: collapse;
    padding:3px;
    background-color: lightblue;
}


.e2  th{
  border: 5px solid pink;
    padding:10px;
  background-color: #ffe6ff;
}
.e2 td{
  border: 2px dotted purple;
    padding:10px;
    background-color:#e6ccff;
}