.table_eff {
  position: absolute; top: 64%; left: 20px; z-index: 99;
  border-collapse: collapse;
  border: 2px solid rgb(140 140 140);
  font-family: Arial;
  font-size: 0.7rem;
  letter-spacing: 1px;
  color: #525252
}
caption {
  caption-side: top;
  padding: 10px;
  font-weight: bold;
  color: #525252
}
thead,
tfoot {
  background-color: rgb(228 240 245);
}
.th_eff,
.td_eff {
  border: 1px solid rgb(160 160 160);
  padding: 8px 10px;
}
/*
td:last-of-type {
  text-align: center;
}

tbody > tr:nth-of-type(even) {
  background-color: rgb(237 238 242);
}

tfoot th {
  text-align: right;
}

tfoot td {
  font-weight: bold;
}
*/