* {
  margin: 0;
  padding: 0;
}
html, body {
  position: relative;
  width: 100%;
  height: 100%;
}
.box {
  height: auto;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
img {
  width: 368px;
  display: block;
  margin: 0 auto;
}
p {
  width: 100%;
  text-align: center;
  font-size: 14px;
  line-height: 16px;
  margin: 37px 0 30px 0;
}
a {
  display: inline-block;
  padding: 0 20px;
  height: 33px;
  border: 1px solid #b5b5b5;
  border-radius: 2px;
  margin: 0 auto;
  text-align: center;
  line-height: 33px;
  color: #848484;
  font-size: 14px;
  cursor: pointer;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.back {
  text-align: center;
  margin-top: 20px;
  color: #999;
  font-size: 14px;
}