.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: 49%; text-align: right; padding-right: 1%; }
.st-val { 
    width: 49%; 
    padding: 5px 0 5px 1%; 
}



/* RESPONSIVE EXAMPLE */

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

@media (max-width: 800px) {
  .stacktable.large-only { display: none; }
  .stacktable.small-only { 
      display: table;
      border-bottom: 1px solid #ccc;
  }
}