Style footnotess

Change-Id: Id39837f5378a00f213ebee2a01916a9b975e8797
diff --git a/inst/rmarkdown/templates/posterdown_ids/resources/template.html b/inst/rmarkdown/templates/posterdown_ids/resources/template.html
index 0778e8e..fa8f354 100644
--- a/inst/rmarkdown/templates/posterdown_ids/resources/template.html
+++ b/inst/rmarkdown/templates/posterdown_ids/resources/template.html
@@ -275,6 +275,16 @@
 margin-block-end: 0.25em;
 }
 
+.footnotes {
+  font-family: Fira Sans Condensed;
+}
+.footnotes ol li::marker {
+    /* vertical-align: super; */
+    position: relative;
+    top: -0.5em;
+    font-size: 80%;
+}
+
 .span {
 width: 200%;
 }
diff --git a/inst/rmarkdown/templates/posterdown_ids/skeleton/skeleton.Rmd b/inst/rmarkdown/templates/posterdown_ids/skeleton/skeleton.Rmd
index 29c02d6..c25b4fc 100644
--- a/inst/rmarkdown/templates/posterdown_ids/skeleton/skeleton.Rmd
+++ b/inst/rmarkdown/templates/posterdown_ids/skeleton/skeleton.Rmd
@@ -40,10 +40,12 @@
 
 ## Objectives
 
-1. Easy to use reproducible poster design. 
+1. Easy to use reproducible poster design. [^1]
 2. Integration with R Markdown.
 3. Easy transition from `posterdown` to `pagedown` report or manuscript documents [@R-pagedown].
 
+[^1]:Footnotes are possible, too.
+
 # Methods
 
 This package uses the same workflow approach as the R Markdown you know and love. Basically it goes from RMarkdown > Knitr > Markdown > Pandoc > HTML/CSS > PDF. You can even use the bibliography the same way [@R-posterdown].