span#span_return { position:absolute; top:70px; width:350px; left:50%;margin-left:-175px; text-align:center; padding:10px; border-radius:5px;  }
span#span_return.error{ background-color:#f2dede; border:#EDBBBB solid 1px; color:#A83B39; }
span#span_return.success{ background-color:#D1EFC4; border:#6EE43B solid 1px; color:#3c763d;}