diff --git a/pyproject.toml b/pyproject.toml
index b9f34b5..c1d7ca4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,4 +42,4 @@ select = [
 
 [tool.pytest.ini_options]
 addopts = ["--color=yes"]
-markers = ["html", "latex"]
+markers = ["html", "latex", "slide"]
diff --git a/renderer/fifty_ohm_html_slide_renderer.py b/renderer/fifty_ohm_html_slide_renderer.py
index d5fc61e..138c182 100644
--- a/renderer/fifty_ohm_html_slide_renderer.py
+++ b/renderer/fifty_ohm_html_slide_renderer.py
@@ -48,9 +48,6 @@ class FiftyOhmHtmlSlideRenderer(FiftyOhmHtmlRenderer):
         qso += '</div>\n'
         return qso
 
-    def render_note(self, token):
-        return f'<aside class="notes">\n{self.render_inner(token)}\n</aside>\n'
-
     def render_tag(self, token):
         if token.tagtype == "fragment":
             return f'<div class="fragment">\n{self.render_inner(token)}\n</div>\n'
@@ -60,6 +57,6 @@ class FiftyOhmHtmlSlideRenderer(FiftyOhmHtmlRenderer):
             return f'<div id="right">\n{self.render_inner(token)}\n</div>\n'
         elif token.tagtype == "note":
             return f'<aside class="notes">\n{self.render_inner(token)}\n</aside>\n'
-        else:
-            return "" # Ignore other tags in slide context
+        
+        return "" # Ignore other tags in slide context anyway in tokenizer
 
diff --git a/test/test_qso.py b/test/test_qso.py
index 5495c7b..231c70c 100644
--- a/test/test_qso.py
+++ b/test/test_qso.py
@@ -2,10 +2,11 @@ import mistletoe
 import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
+from renderer.fifty_ohm_html_slide_renderer import FiftyOhmHtmlSlideRenderer
 
 
 @pytest.mark.html
-def test_table_html():
+def test_qso_html():
     assertions = {
         "<qso>\nfoo\n</qso>": FiftyOhmHtmlRenderer.render_tag_helper("qso", '<div class="qso_own">foo</div>\n', 1, 0)
         + "\n",
@@ -21,3 +22,13 @@ def test_table_html():
 
     for assertion in assertions:
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == assertions[assertion]
+
+@pytest.mark.slide
+def test_qso_slide():
+    assertions = {
+        "<qso>\nfoo\n> bar\n</qso>":
+            '<div class="qso r-fit-text">\n<div class="qso_own fragment fade-right">foo</div>\n<div class="qso_other fragment fade-left">bar</div>\n</div>\n\n',
+    }
+
+    for assertion in assertions:
+        assert mistletoe.markdown(assertion, FiftyOhmHtmlSlideRenderer) == assertions[assertion]
diff --git a/test/test_tag.py b/test/test_tag.py
index 55d4fbf..7be0c03 100644
--- a/test/test_tag.py
+++ b/test/test_tag.py
@@ -2,6 +2,7 @@ import mistletoe
 import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
+from renderer.fifty_ohm_html_slide_renderer import FiftyOhmHtmlSlideRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 
 
@@ -103,3 +104,30 @@ def test_thematic_break_and_tag_latex():
 
     for assertion in assertions:
         assert mistletoe.markdown(assertion, FiftyOhmLaTeXRenderer) == assertions[assertion]
+
+
+@pytest.mark.slide
+def test_tag_slide():
+    assertions = {
+        "<note>\nFoo\n</note>": '<aside class="notes">\n<p>Foo</p>\n</aside>\n\n',
+        "<fragment>\nFoo\n</fragment>": '<div class="fragment">\n<p>Foo</p>\n</div>\n\n',
+        "<left>\nFoo\n</left>": '<div id="left">\n<p>Foo</p>\n</div>\n\n',
+        "<right>\nFoo\n</right>": '<div id="right">\n<p>Foo</p>\n</div>\n\n',
+    }
+
+    for assertion in assertions:
+        assert mistletoe.markdown(assertion, FiftyOhmHtmlSlideRenderer) == assertions[assertion]
+
+@pytest.mark.slide
+def test_slide_break():
+    assertions = {
+        "---\na\n" : "<section>\n<p>a</p>\n</section>\n\n",
+        "---\na\n---\nb\n" : "<section>\n<p>a</p>\n</section>\n\n<section>\n<p>b</p>\n</section>\n\n",
+        "--- attention\na\n" : "<section data-background-color=\"#B8EAFF\">\n<p>a</p>\n</section>\n\n",
+        "--- unit\na\n" : "<section data-background-color=\"#40C08C\">\n<p>a</p>\n</section>\n\n",
+        "--- danger\na\n" : "<section data-background-color=\"#FF756D\">\n<p>a</p>\n</section>\n\n",
+        "--- foo\na\n" : "<section foo>\n<p>a</p>\n</section>\n\n",
+    }
+
+    for assertion in assertions:
+        assert mistletoe.markdown(assertion, FiftyOhmHtmlSlideRenderer) == assertions[assertion]