#sub-organization {max-width:100%; text-align: center;}
#sub-organization .pc_only {display: block; margin: 0 auto;}
#sub-organization .mo_only {display: none;}

@media screen and (max-width:768px){
  #sub-organization {padding-bottom:0!important}
  #sub-organization .pc_only {display: none;}
  #sub-organization .mo_only {display: block; margin: 0 auto;}
}