.assistenzaStephidden {
  display: none;
}

.labelAss {
  text-align: end;
}

.div_error {
    font-weight: bold;
    color: red;
    text-align: center;
    font-size: xx-large;
}
.bad input, .bad select, .bad textarea {
  border: 1px solid #CE5454;
  -webkit-box-shadow: 0 0 4px -2px #CE5454;
          box-shadow: 0 0 4px -2px #CE5454;
  position: relative;
  left: 0;
  -moz-animation: .7s 1 shake linear;
  -webkit-animation: 0.7s 1 shake linear; }

.item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex; }

.item input, .item textarea {
  -webkit-transition: 0.42s;
  transition: 0.42s; }

/* alerts (when validation fails) */
.item .alert {
  float: left;
  margin: 0 0 0 20px;
  padding: 3px 10px;
  color: #FFF;
  border-radius: 3px 4px 4px 3px;
  background-color: #CE5454;
  /*max-width: 170px;*/
  white-space: pre;
  position: relative;
  left: -15px;
  opacity: 0;
  z-index: 1;
  -webkit-transition: 0.15s ease-out;
  transition: 0.15s ease-out; }

.item .alert::after {
  content: '';
  display: block;
  height: 0;
  width: 0;
  border-color: transparent #CE5454 transparent transparent;
  border-style: solid;
  border-width: 11px 7px;
  position: absolute;
  left: -13px;
  top: 1px; }

.item.bad .alert {
  left: 0;
  opacity: 1; }