html {
  font-family: "Merriweather", "Georgia", Cambria, "Times New Roman", Times,
    serif;
  font-size: 18px;
  line-height: 1.5;
  height: 100vh;
}

body {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

h1 {
  flex-basis: 100%;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 1px dashed #ccc;
}

article {
  flex-grow: 1;
}

footer {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px dashed #ccc;
}

p {
  width: 100%;
}

nav ul {
  list-style-type: none;
  padding: 0;
}

nav li {
  display: flex;
  justify-content: space-between;
}

dialog {
  max-width: 800px;
  width: calc(100% - 2em - 6px - 48px);
}

form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

input {
  padding: 8px;
}