/* Properties */
:where(body) {
  --background-color: #FFF;
  --text-color: #222;
}
body {
  background-color: var(--background-color);
  color: var(--text-color);
}

@media (prefers-color-scheme: dark) {
  :where(body) {
    --background-color: hsl(228, 5%, 15%);
    --text-color: hsl(228, 5%, 80%);
  }
}


html, body {
  font-family: sans-serif;
font-size: 14pt;
  margin: 16;
ma-width: 1920px;
  height: 100%;
}

.topnav {
  overflow: hidden;
  background-color: #243447;
}

.topnav a {
  float: left;
  color: LightGray;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: Gray;
  color: black;
}

.topnav a.active {
  background-color: DarkMagenta;
  color: LightGray;
}

.main a:link {
  color: #3399ff;
}

/* visited link */
.main a:visited {
  color: #3333ff;
}

/* mouse over link */
.main a:hover {
  color: #FF9900;
}

table, th, td {
  border: none;
  border-collapse: collapse;
}