PE-1159 add helper class for hidden style
PE-1159 add helper class for hidden style

xnejp03/assets-frontend,tmikus/assets-frontend,hmrc/assets-frontend,xnejp03/assets-frontend,alexanderjamesking/assets-frontend,hmrc/assets-frontend,alexanderjamesking/assets-frontend,tmikus/assets-frontend,alexanderjamesking/assets-frontend,xnejp03/assets-frontend,hmrc/assets-frontend,tmikus/assets-frontend