table.process {
  width: 100%;
  border-collapse: collapse;
}

table.process td {
  text-align: left;
  vertical-align: top;
  width: 33%; 
  border: 1px solid black;
  margin: 0;
  padding: 2px;
}

table.process td:first-child {
  width: 0;
  border: 0;
  width: 5%;
  padding-right: 5px;
}

table.process tr:first-child td {
  border: 3px solid black;
  border-left: 1px solid black;
  border-right: 1px solid black;
}

table.process tr:first-child td:first-child {
  border: 0;
  border-right: 3px solid black;
}

table.process tr:first-child td:first-child + td + td + td{
  border-right: 3px solid black;
}

table.process td.stage {
  background-color: #EEEEFF;
  border: 3px solid black;
  text-align: center;
}

table.process tr:first-child td:first-child {
  border-bottom: 0;
}

img {
  border: 0;
}