.cert_field {
  padding-top: 0;
  padding-bottom: 0;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  height: 40px;
  *height: 36px;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  font-size: 30px;
  text-align: center;
  font-weight: 300;
}
