*,:after,:before{ box-sizing: border-box; }

:root {
  --aspect-4x3: 4 / 3;
  --aspect-16x9: 16 / 9;
  --height-vga: 480px;
  --height-svga: 600px;
  --height-xga: 768px;
  --height-sxga: 960px;
  --width-vga: 640px;
  --width-svga: 800px;
  --width-xga: 1024px;
  --width-sxga: 1280px;
}

html {
  background-color: hsl(278, 50%, 96%);
  font-size: 20px;
}

.p1 {
  font-family: "Times New Roman", Times, serif;
}


body {
  line-height: 1.4;
  padding: 1rem;
  margin: 0 auto;
  max-width: var(--width-svga);
}

header {
  text-align: center;
}

header > nav {
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

body > footer {
  border-top: groove;
  margin-top: 2rem;
  padding-top: 1rem;
}

nav a, nav span {
  padding: 0 1rem;
}

@media (max-width: 800px) {
  html {
    font-size: 15px;
  }
}



header > nav a:not(:last-child),
header > nav span:not(:last-child) {
  border-right: 2px solid rgba(0, 0, 0, 0.3);
  height: 1.2rem;
}

header > img {
  margin-top: 0px; 
  margin-bottom: 20px;
}


h1 {
  font-size: 2rem;
  text-wrap: balance;
}

li {
  margin: .5rem 0;
}

img,
svg {
  height: auto;
  max-width: 100%;
}

figure.wide {
  margin: 0 calc(50% - 45vw);
}

figcaption {
  margin: .5rem 0;
}

td {
  vertical-align: top;
}
td:first-child {
  white-space: nowrap;
}