body {
  background-color: black;
  color: white;
}

a:link {
  text-decoration: underline;
  color: orange;
}
a:visited {
  text-decoration: underline;
  color: orange;
}
a:hover {
  text-decoration: underline;
  color: cyan;
}

.header {
  background-color: black;
  color: white;
  width: 100%;
  border-width: 0px;
  border-style: none;
  border-collapse: collapse;
}

.header-title {
  padding-top: 0.3em;
  padding-left: 0.5em;
  padding-bottom: 0.5em;
  font-family: times new roman;
  font-size: 300%;
  width: 100%;
}

.header-menu-cell {
  vertical-align: top;
}

.header-menu {
  background-color: orange;
  font-size: 80%;
  font-family: helvetica;
  padding-left: 0.5em;
  padding-right: 0.5em;
}

.header-menu td {
  padding-left: 0.5em;
  padding-right: 0.5em;
  color: black;
}

.header-menu td a:link {
  text-decoration: none;
  color: black;
}

.header-menu td a:visited {
  text-decoration: none;
  color: black;
}

.header-menu td a:hover {
  text-decoration: underline;
  color: cyan;
}

.selected-page {
  background-color: red;
}

.buchtitel {
  color: orange;
  font-style: italic;
}

.content {
  font-family: times new roman;
  background-color: #004060;
  padding: 1em;
}