table {
  border-collapse: collapse;
}

tr {
  border: none;
}

td:not(:first-child):not(:last-child), th:not(:first-child):not(:last-child) {
  border-right: solid 1px #D3D3D3;
  border-left: solid 1px #D3D3D3;
}

td, th {
  padding: 15px;
  text-align: center;
  border-bottom: solid 1px #D3D3D3;
}

th {
  border-bottom: solid 2px #D3D3D3;
}