:root {
  /* --overall-bg: #87CEFA;
  */
  --overall-bg: #E0FFFF;
  --block-bg: #87CEFA;
  --text-fg: #0000CD;
  font-family: sans-serif;
}

body {
  background-color: var(--overall-bg);
  color: var(--text-fg);
  display: grid;
  height: 100vh;
  grid-template-columns: 1fr;
  grid-template-rows: 75px 1.5em 1fr 1.5em;
  grid-template-areas:
    "header"
    "nav"
    "main"
    "footer";
}

header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav {
  grid-area: nav;
  border-top: var(--text-fg) solid;
  border-bottom: var(--text-fg) solid;
  display: flex;
}

.navitem {
  margin-left: 10px;
  margin-right: 10px;
}

main {
  grid-area: main;
  overflow-y: auto;
  padding: 8px;
  border-bottom: var(--text-fg) solid;
}

footer {
  grid-area: footer;
}

h1 {
  text-align: center;
}

audio {
  width: 100px;
  height: 25px;
}

.required label:after {
  content: "*";
}

blockquote {
  display: block;
  margin-top: 1em;
  margin-bottom: 1em;
  margin-left: 40px;
  margin-right: 40px;
}

table,
tr,
th,
td {
    border: 2px solid;
    vertical-align: top;
}

table {
    table-layout: fixed;
    text-align: center;
}