view,image,text,rich-text,progress,button,input,form,label,textarea{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

page,
uni-page-body{
  box-sizing: border-box;
  height: 100%;
  background: #fff;
}
.hidden{
  display: flex;
  visibility: hidden;
}

.df{
	display: flex;
	justify-content: center;
	align-items: center;
}