* {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

.weixin-tip {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  filter: alpha(opacity=80);
  height: 100%;
  width: 100%;
  z-index: 9999;
}

.weixin-tip p {
  text-align: center;
}