3 files changed, 13 insertions, 4 deletions
diff --git a/src/main/java/org/zwobble/mammoth/DocumentConverter.java b/src/main/java/org/zwobble/mammoth/DocumentConverter.java
index 089020b..71fdaeb 100644
--- a/src/main/java/org/zwobble/mammoth/DocumentConverter.java
+++ b/src/main/java/org/zwobble/mammoth/DocumentConverter.java
@@ -58,8 +58,7 @@ public class DocumentConverter {
         String referenceId = generateNoteRefHtmlId(note.getNoteType(), note.getId());
         ImmutableList.Builder<HtmlNode> children = ImmutableList.builder();
         children.addAll(convertToHtml(note.getBody()));
-        // TODO: should be collapsible
-        children.add(Html.element("p", list(
+        children.add(Html.collapsibleElement("p", list(
             Html.text(" "),
             Html.element("a", map("href", "#" + referenceId), list(Html.text("↑"))))));
         return Html.element("li", map("id", id), children.build());
diff --git a/src/main/java/org/zwobble/mammoth/html/Html.java b/src/main/java/org/zwobble/mammoth/html/Html.java
index ca9597a..0a32e58 100644
--- a/src/main/java/org/zwobble/mammoth/html/Html.java
+++ b/src/main/java/org/zwobble/mammoth/html/Html.java
@@ -32,7 +32,15 @@ public class Html {
     }
 
     public static HtmlNode element(String tagName, Map<String, String> attributes, List<HtmlNode> children) {
-        return new HtmlElement(tagName, attributes, children);
+        return new HtmlElement(tagName, attributes, children, false);
+    }
+
+    public static HtmlNode collapsibleElement(String tagName, List<HtmlNode> children) {
+        return collapsibleElement(tagName, map(), children);
+    }
+
+    public static HtmlNode collapsibleElement(String tagName, Map<String, String> attributes, List<HtmlNode> children) {
+        return new HtmlElement(tagName, attributes, children, true);
     }
 
     public static HtmlNode selfClosingElement(String tagName) {
diff --git a/src/main/java/org/zwobble/mammoth/html/HtmlElement.java b/src/main/java/org/zwobble/mammoth/html/HtmlElement.java
index 637b009..59683ba 100644
--- a/src/main/java/org/zwobble/mammoth/html/HtmlElement.java
+++ b/src/main/java/org/zwobble/mammoth/html/HtmlElement.java
@@ -7,11 +7,13 @@ public class HtmlElement implements HtmlNode {
     private final String tagName;
     private final Map<String, String> attributes;
     private final List<HtmlNode> children;
+    private final boolean collapsible;
 
-    public HtmlElement(String tagName, Map<String, String> attributes, List<HtmlNode> children) {
+    public HtmlElement(String tagName, Map<String, String> attributes, List<HtmlNode> children, boolean collapsible) {
         this.tagName = tagName;
         this.attributes = attributes;
         this.children = children;
+        this.collapsible = collapsible;
     }
 
     public String getTagName() {