.restable{
  width: 100%;
  border-collapse: collapse;
}
.restable tr th,
.restable tr td{
  border: 1px solid #ccc;
  padding: 10px 20px !important;
  min-width: 250px;
}
.restable tr th{
  background-color: #f5fffa;
  font-weight: normal;
}

@media screen and (max-width: 768px) {
  .restable tr th,
  .restable tr td{
    display: block;
    width: 100%;
    min-width: auto;
  }
}