@CHARSET "UTF-8";
.contain {
  width: 100%;
  background: #fff;
  position: relative;
}
.contain img {
  margin-left: 15%;
}
.contain button {
  width: 120px;
  height: 45px;
  background: #2da1ca;
  border-radius: 4px;
  color: #fff;
  font-size: 16px;
  position: absolute;
  top: 400px;
}
.contain .home {
  left: 260px;
}
.contain .before {
  left: 400px;
}