* {
  font-family: 'Helvetica';
  margin: 0;
  padding: 0;
}

body {
  color: #ccc;
  background-color: #111;
  background: #111;
  z-index: 1;
}

#logo {
  margin: 1em 2em;
}

#back2Top {
  display: none; /* Hidden by default */
  position: fixed; /* Fixed/sticky position */
  bottom: 20px; /* Place the button at the bottom of the page */
  right: 30px; /* Place the button 30px from the right */
  z-index: 99; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  border: 1px dashed #111;
  margin: 0.1em;
  background-color: #8b0000; /* Set a background color */
  color: #fff; /* Text color */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding: 0.5em; /* Some padding */
  border-radius: 10px; /* Rounded corners */
}

#back2Top:hover {
  color: #fff;
  margin: 0.1em;
  border: 1px dashed #ccc;
  background-color: #111; /* dark-grey background on hover */
}

#main {
  position: relative;
  margin: 2em;
  background-color: #222;
  min-height: 400px;
  padding: 1em;
  border-radius: 1em;
  border: 1px solid #9e0000;
}

#_404 {
  width: 50%;
  border: 1px solid #fff;
  text-align: center;
  vertical-align: middle;
}

#_404 pre {
  font-family: 'Courier';
}

#_404 p {
  width: 50%;
  margin: 0 auto;
  text-align: justify;
  text-justify: inter-word;}

.whitespace {
  white-space: pre-wrap;
}

.center {
  margin: 0 auto;
}

footer {
  position: inherit;
  margin: 2em auto 0 auto;
  width: 100%;
  height: 40px;
  text-align: center;
  vertical-align: middle;
}