body {
  color: rgb(245, 245, 245);
  background-color: black;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 18px;
  margin: 1rem;
  max-width: 1500px;
}

header {
  border-bottom: 1px solid #222;
  margin-bottom: 1rem;
}

footer {
  border-top: 1px solid #222;
  margin-top: 1rem;
}

a {
  color: #00e;
  text-decoration: none;
}

.grid-item { width: 450px; }
.grid-item--width2 { width: 400px; }

.grid-item p {
  text-align: justify;
}

div.center {
  width: 100%;
  text-align: center;
}