.right-area {
  position: fixed;
  bottom: 50px;
  right: 50%;
  margin-right: -670px;
  width: 40px;
  background: #fff;
}

.right-area a {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  font-size: 20px;
  color: #3091F2;
}

.right-area a span {
  position: absolute;
  left: 0;
  top: 0;
  display: none;
  padding: 4px;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 1px;
  text-align: center;
  background: #3091f2;
  color: #fff;
}

.right-area .icon-go-top {
  position: relative;
  top: 3px;
  font-size: 26px;
}

.right-area a:hover span {
  display: block;
}

.right-area .weixin-qrcode {
  position: absolute;
  right: 60px;
  top: 10px;
  display: none;
  width: 100px;
  height: 100px;
  text-align: center;
  background: #fff;
}

.right-area .weixin-qrcode:after {
  position: absolute;
  right: -5px;
  top: 45px;
  width: 10px;
  height: 10px;
  content: "";
  transform: rotate(45deg);
  background: #fff;
}

.right-area .weixin-qrcode img {
  width: 100px;
  height: 100px;
}