footnotation-styles.css

.footnotes ol li {
line-height: 1.5;
}

.footnotes  li:before {
content: "";
margin-right: -.25em;
}

sup.footnote a, a.footnotetoggle {
font-weight: bold;
margin-left: 1px;
}

sup.footnoteblack a, a.footnotetoggleblack {
color: inherit !important;
}

.footnotes {
column-span: all;
margin-top: 2.5em;
font-size: 85%;
}

.footnotes:before {
width: 55px;
content: "";
border-top: 1px solid #000;
display: block;
margin: 0 0 1.5em;
}

span.returnkey {
font-size: 75%;
vertical-align: text-bottom;
display: inline-block;
}