Forum How do I...?

prince-footnote-policy: keep-with-line; not working

i want prince to fit all my footnotes on one single page instead of pushing them to the next page. So i tried the prince footnote policy. Its not working.
(i tired the keep-with-block property as well with no effect. Is there any mistake in my css?

.footnote {
font-size: 8pt;
font-family: "adv";
display: none;
display: footnote;
display: prince-footnote;
position: footnote;
counter-increment: footnote;
footnote-style-position: inside;
margin-left: 0;
line-height: 1.4;
text-indent: 1em;
text-align: left;
text-align: justify;
font-stretch: ultra-condensed;
prince-hyphenate-patterns: url('hyph-de-1996.tex');
prince-footnote-policy: keep-with-line;
.footnote::footnote-marker {
font-size: 5.86pt;
line-height: decimal;
content: counter(footnote)" ";
font-family: "adv";

.footnote::footnote-call {
font-size: 5.82pt;
vertical-align: super;
line-height: none;
font-family: "adv";
The prince-footnote-policy property needs to be applied to the paragraph that the footnote occurs in, not the footnote element itself.