#tour{
  width:100vw;height:100vh;
}

.back-button {
  position: absolute;
  z-index: 2000000;
  top: 15px;
  left: 15px;
}

body, div, h1, h2, h3, span, p {
  font-family: Verdana,Arial,Helvetica,sans-serif;
}
/* fullscreen */
html {
  height:100%;
}
body {
  height:100%;
  margin: 0px;
  overflow:hidden; /* disable scrollbars */
  font-size: 10pt;
}

/* fix for scrolxl bars on webkit & >=Mac OS X Lion */
::-webkit-scrollbar {
  background-color: rgba(0,0,0,0.5);
  width: 0.75em;
}

::-webkit-scrollbar-thumb {
  background-color:  rgba(255,255,255,0.5);
}
