.title {
    font-size: 3.5rem;
    font-weight: bold;
    display: inline-block;
    line-height: 4.5rem;
}

.einleitung {
/*    font-size: 1.75rem;
    display: inline-block;
    margin: 40px 0;*/
    font-size: 1.75rem;
    display: inline-block;
/*    margin: 40px 0;*/
margin: 20px 0;
    font-weight: bold;
    line-height: 1.5;
    color: #009fe3;
}


.page-toc {
border: 1px solid #cdd;
    background-color: #f9f9f9;
    margin: 0;
    padding: 20px 20px;
    font-size: 90%;
    margin-bottom: 40px;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
}


.toc-none, .toc-bullets, .toc-numbers {
    padding-inline-start: 20px;
/*    padding-block-end   : 8px;
    padding-block-start : 4px;*/
}

.toc-none {
    list-style-type: none;
}

.page-toc ul li, .toc-bullets li li li li {
    list-style-type: disc;
}
.toc-bullets li li, .toc-bullets li li li li li {
    list-style-type: circle;
}
.toc-bullets li li li, .toc-bullets li li li li li li {
    list-style-type: square;
}

.toc-numbers {
    counter-reset  : item;
    list-style-type: none;
    margin-bottom: 0;
}
.toc-numbers li:before {
    content          : counters(item, ". ") ". ";
    counter-increment: item;
}

.toc-heading {
    font-size  : larger;
    font-weight: bold;
    margin-bottom: 10px;
}


/*** Keyboard Style ***/

kbd {
  font-family: Consolas, "Lucida Console", monospace;
  display: inline-block;
  border-radius: 3px;
  padding: 0px 4px;
  box-shadow: 1px 1px 1px #777;
  margin: 2px;
/*  font-size: 1.5rem;*/
/*  vertical-align: text-bottom;*/
  background: #eee;
  font-weight: 500;
  color: #555;
  cursor: pointer;
/*  font-variant: small-caps;*/
  font-weight: 600;

  /* This two work */
  /* letter-spacing: 0.5px; */
  letter-spacing: 1px;


  /* Prevent selection */
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

kbd:hover, kbd:hover * {
  color: black;
  /* box-shadow: 1px 1px 1px #333; */
}
kbd:active, kbd:active * {
  color: black;
  box-shadow: 1px 1px 0px #ddd inset;
}

kbd kbd {
  padding: 0px;
  margin: 0 1px;
  box-shadow: 0px 0px 0px black;
  vertical-align: baseline;
  background: none;
}

kbd kbd:hover {
  box-shadow: 0px 0px 0px black;
}

kbd:active kbd {
  box-shadow: 0px 0px 0px black;
  background: none;
}