Vorlage:ZahlZelle/styles.css

.numericFormat-1000::after {
   content: ".";
}
.numericFormat-minus > span,
.numericFormat-dec > span {
   position: absolute;
   left:     -10000px;
   top:      auto;
   width:    1px;
   height:   1px;
   overflow: hidden;
}
.numericFormat-minus::after {
   content: "−";
}
.numericFormat-dec::after {
   content: ",";
}
.numericFormat-fractpart {
   margin-right: 0.2em;
}