/* pages/download/index.wxss */
.topp{
  text-align: center;
  margin-top: 50px;
  padding: 20px;
}

.backk{
  margin: 100px auto;
  text-align: center;
}

.backk2{
  padding: 10px 20px;
  border-radius: 4px;
  background-color: #7dbe2b;
  color: #fff;
}