.stacktable.large-only { display: table; }
.stacktable.small-only { display: none; }

@media (max-width: 768px) {
.stacktable {
  width: 100%;
}
.st-head-row { padding-top: 1em; }
.st-head-row.st-head-row-main { font-size: 1.5em; padding-top: 0; }
.st-key {
  width: 30%;
  padding: .6em.4em;
  border: 1px solid #999;
  box-sizing: border-box;
  font-size: 13px;
}
.st-val {
  width: 70%;
  padding: .6em.4em;
  border: 1px solid #999;
  box-sizing: border-box;
  font-size: 13px;
  text-align: center;
}

table.stacktable tr:nth-child(odd) {
  background: #f0f0f0;
}
tr.st-head-row td{
  padding: 1.1em 0;
  font-size: 16px;
  font-weight: bold;
}

  .stacktable.large-only { display: none; }
  .stacktable.small-only { display: table;}
}