#pres table {
  margin: 1rem auto;
}

/*#pres table > thead > tr {*/
table > thead > tr {
  text-align: center;
}

/* #formOpt > fieldset {*/
form > fieldset {
  margin : 1rem auto;
}

#modalita {
  width : 45rem;
}

#modalita label {
  margin-left: 10px;
  width: 42rem;
}

/* #formOpt > div { */
form > div {
  clear: both;
  text-align: center;
}

/*#formOpt > div > button {*/
form > div > button {
  margin : 1rem 2rem;
  width  : 7rem;
}

#nuovo_mat {
  width: 24rem;
  display: none;
  float:left;
}

#materiale_archivio {
  width: inherit;
  table-layout: auto;
}

#parametri {
  display : none;
  float   : right;
  width   : 25rem;
}

#parametri > div {
  padding: 0.2rem;
}

#parametri > div > div {
  float: left;
  margin: 0;
  width: 16rem;
}

#parametri > div > select {
  float: right;
}

#modalita > div:nth-of-type(even) {
  background-color : #DFF;
  border           : #AAA solid;
  border-width     : 1px 0;
}

#impedenza-Z1, #prof_penetr, #cole-cole {
  text-align: center;
}

#materiale_archivio > thead > tr {
  text-align: center;
}