html,
body {
  margin: 0;
  padding: 0;
}
@media only screen and (max-width: 540px) {
  body {
    font-size: 14px;
  }
}
main {
  padding: 1.2em;
}
.txt-c {
  text-align: center;
}
h1 {
  display: block;
  font-size: 2em;
  margin-block-start: 0.67em;
  margin-block-end: 0.67em;
  margin-inline-start: 0px;
  margin-inline-end: 0px;
  font-weight: bold;
}
table {
  border-collapse: collapse;
  border-color: #fafafa;
}
table th,
table td {
  padding: 0 0.5em;
}