Unify top and bottom margins for p, ol, ul

Change-Id: I4fef691d9130f05403f2c33af0831f297f1755ac
diff --git a/inst/rmarkdown/templates/posterdown_ids/resources/template.html b/inst/rmarkdown/templates/posterdown_ids/resources/template.html
index 1c5489d..03bcb9e 100644
--- a/inst/rmarkdown/templates/posterdown_ids/resources/template.html
+++ b/inst/rmarkdown/templates/posterdown_ids/resources/template.html
@@ -361,13 +361,11 @@
 caption {
 margin-bottom: 10px;
 }
-.poster_body p {
+.poster_body p, ol, ul {
 margin-top: 2mm;
 margin-bottom: 6mm;
 color: $if(body_textcol)$$body_textcol$$else$#000000$endif$
 }
-.poster_body ol {
-}
 #ul {
 }
 .references p {