uniapp/unpackage/dist/dev/mp-weixin/pages/index/index.wxss

.content {
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  width: 100vw;
  height: 100vh;
}
.content {
  text-align: center;
}
.content .one {
  padding: 2vw 0;
}
.content .one button {
  margin: 0 1vw;
}