.table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  margin-left: auto;
  margin-right: auto;
}
.table td {
  width: 50%;
  background: #FFFFFF;
  border: 0px solid #000000;
  box-sizing: border-box;
  padding: 15px;
  vertical-align: top;
  text-align: center;
}

@media all and (max-width: 580px) {
.table td {
    display: block;
    width: 100%;
    border-bottom: none;
  }
.table td:last-child {
    border-bottom: 1px solid #000;
  }
}