body {
  background-color: #ffffff;
}
div#page {
  text-align:center;
}
div#head {
  height:100px;
}
div#em {
  width:600px;
  background-color:#83dea4;
  text-align:center;
  margin:auto;
  padding:20px;
  -moz-border-radius: 20px;
  -webkit-border-radius: 20px;
  -khtml-border-radius: 20px;
  border-radius: 20px;
}
p#addr {
  font-family: arial, helvetica, sans;
}
img#qrcode {
  width: 172px;
}