html, body {
  padding: 0;
  margin: 0;
}

main {
  max-width: 80em;
  margin: auto;
  font-family: sans-serif;
}
main hr {
  padding: 1em 0;
  visibility: hidden;
}

h1 span {
  font-size: 0.75em;
  vertical-align: middle;
}

.col-2 {
  -moz-columns: 1;
       columns: 1;
}

@media screen and (min-width: 600px) {
  .col-2 {
    -moz-columns: 2;
         columns: 2;
  }
}
.mysteries {
  background: #f5f5f5;
  padding: 1em;
  border-radius: 10px;
}
@media screen and (min-width: 800px) {
  .mysteries .wrapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
}
footer {
  margin: 5em 0 0 0;
  background: #5b1d4e;
  padding: 1em;
  color: white;
}
footer .wrapper {
  max-width: 80em;
  margin: auto;
}
footer .wrapper p a {
  color: #f5f5f5;
}
footer .wrapper p a:hover {
  color: #ccc;
}