.cellGrid{
    border-radius: 25px;
    border-left: 2px solid #dfdfdf;
    border-right: 2px solid #dfdfdf;
    border-top: 2px solid #dfdfdf;
    border-bottom: 2px solid #dfdfdf;
}

.cellBorder {
  border: 1px solid #000; /* 1px solid black border around each cell */
}

.noBorder {
  border: 0 solid #000; /* 1px solid black border around each cell */
}