/* (A) ENTIRE PAGE */
* {
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
}

td
{
    border: 1px solid #999999;
    min-width: 80px;
    padding:;
}

/* (B) EDITABLE TABLE */
.editable {
  border-collapse: collapse;
  text-align: center;
}

th, td {
  text-align: left;
  padding: 15px;
}
thead {
  color: #fff;
  background: #8363fd;
}
tbody tr:nth-child(even) {
  background: #f2f2f2;
}

td.edit {
  background: #f8ff88;
}