html, body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  font-family: monospace;
  line-height: 1.6;
  box-sizing: border-box;
}

.container {
  width: 100%;
  max-width: 560px;
}

nav {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

nav form {
  margin: 0;
  padding: 0;
}

nav input[type="submit"] {
  font-family: monospace;
  cursor: pointer;
}

article {
  border: 1px solid;
  padding: 12px 16px;
  margin-bottom: 12px;
}

article a {
  text-decoration: none;
  color: inherit;
}

article time {
  display: block;
  margin-bottom: 4px;
}