body {
  font-family: "Helvetica Neue", 'Helvetica', sans-serif;
  color: #666;
  margin: 1em;
  line-height: 2;
}

a:link,
a:visited /* styles the links */ {
  color: #f00;
  text-decoration: none;
  padding-bottom: 0.1875em; /* 3px / 16px */
}
a:hover /* changes the colour of text when hovered */ {
  color: #fe580f;
  cursor: pointer;
}

#welcomeback {
  display: none;
}
#red {
  display: none;
  background: #FC6A71;
}
#blue {
  display: none;
  background: #A0E4F7;
}

.color {
  font-size: 1.5em;
  text-align: center;
  width: 42%;
  padding: 0 2%;
  position: relative;
  top: 20px;
  margin:0 auto;
}

a.red {
  padding-left: 10px;
  color: #FC6A71;
}
a.blue {
  padding-right: 10px;
  color: #A0E4F7;
}

.message {
  font-size: 1.5em;
  text-align: center;
  width: 42%;
  padding: 0 2%;
  position: relative;
  top: 20px;
  background: #eee;
  margin:0 auto;
}

footer {
  position:fixed;
  bottom: 10px;
  color: #888;
  text-align: center;
  width: 600px;
  left: 50%; /* on positionne l'élément à la moitié de l'écran */
  margin-left: -300px;
}