diff --git a/test/test_comment.py b/test/test_comment.py
index a9be596..28c3612 100644
--- a/test/test_comment.py
+++ b/test/test_comment.py
@@ -1,10 +1,12 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_comment_html():
     assertions = {
         "%Comment\nBar": "Bar",
@@ -17,6 +19,7 @@ def test_comment_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == paragraph(assertions[assertion])
 
 
+@pytest.mark.latex
 def test_comment_latex():
     assertions = {
         "%Comment\nBar": "\nBar\n",
diff --git a/test/test_dash.py b/test/test_dash.py
index 7e1c684..0a571e4 100644
--- a/test/test_dash.py
+++ b/test/test_dash.py
@@ -1,10 +1,12 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_dash_html():
     assertions = {
         "Foo - Bar": "Foo – Bar",
@@ -14,6 +16,7 @@ def test_dash_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == paragraph(assertions[assertion])
 
 
+@pytest.mark.latex
 def test_dash_latex():
     assertions = {
         "Foo - Bar": "\nFoo -- Bar\n",
diff --git a/test/test_halfwidth_spaces.py b/test/test_halfwidth_spaces.py
index 56a0d46..97a57ac 100644
--- a/test/test_halfwidth_spaces.py
+++ b/test/test_halfwidth_spaces.py
@@ -1,10 +1,12 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_halfwidth_space_html():
     input = "Dies ist z.B. ein Test. D.h. hier sollten d.h. Spaces ersetzt worden sein."
     target = "Dies ist z. B. ein Test. D. h. hier sollten d. h. Spaces ersetzt worden sein."
@@ -12,6 +14,7 @@ def test_halfwidth_space_html():
     assert mistletoe.markdown(input, FiftyOhmHtmlRenderer) == paragraph(target)
 
 
+@pytest.mark.latex
 def test_halfwidth_space_latex():
     input = "Dies ist z.B. ein Test. D.h. hier sollten d.h. Spaces ersetzt worden sein."
     target = "\nDies ist z.\,B. ein Test. D.\,h. hier sollten d.\,h. Spaces ersetzt worden sein.\n"
diff --git a/test/test_morse.py b/test/test_morse.py
index fa9b86a..e053b68 100644
--- a/test/test_morse.py
+++ b/test/test_morse.py
@@ -1,9 +1,11 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_morse_html():
     assertions = {
         '"[morse:a]"': FiftyOhmHtmlRenderer.render_morse_helper([[1, 2]]),
diff --git a/test/test_nonbreaking_spaces.py b/test/test_nonbreaking_spaces.py
index 2f30633..4b52992 100644
--- a/test/test_nonbreaking_spaces.py
+++ b/test/test_nonbreaking_spaces.py
@@ -1,10 +1,12 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_paragraph_html():
     input = "Der Test befindet sich unter §2 vielleicht aber auch § 3."
     target = "Der Test befindet sich unter § 2 vielleicht aber auch § 3."
@@ -12,6 +14,7 @@ def test_paragraph_html():
     assert mistletoe.markdown(input, FiftyOhmHtmlRenderer) == paragraph(target)
 
 
+@pytest.mark.html
 def test_three_points_html():
     assertions = {
         "Heute hatte ich ... zum Mittagessen.": "Heute hatte ich ... zum Mittagessen.",
@@ -24,6 +27,7 @@ def test_three_points_html():
         assert mistletoe.markdown(key, FiftyOhmHtmlRenderer) == paragraph(value)
 
 
+@pytest.mark.html
 def test_absatz_html():
     input = "Der Test befindet sich unter Abs.2 vielleicht aber auch Abs. 3."
     target = "Der Test befindet sich unter Abs. 2 vielleicht aber auch Abs. 3."
@@ -31,6 +35,7 @@ def test_absatz_html():
     assert mistletoe.markdown(input, FiftyOhmHtmlRenderer) == paragraph(target)
 
 
+@pytest.mark.html
 def test_class_html():
     input = "Ich lerne für Klasse A, Klasse E und Klasse N."
     target = "Ich lerne für Klasse A, Klasse E und Klasse N."
@@ -38,6 +43,7 @@ def test_class_html():
     assert mistletoe.markdown(input, FiftyOhmHtmlRenderer) == paragraph(target)
 
 
+@pytest.mark.latex
 def test_paragraph_latex():
     input = "Der Test befindet sich unter §2 vielleicht aber auch § 3."
     target = "\nDer Test befindet sich unter §~2 vielleicht aber auch §~3.\n"
@@ -45,6 +51,7 @@ def test_paragraph_latex():
     assert mistletoe.markdown(input, FiftyOhmLaTeXRenderer) == target
 
 
+@pytest.mark.latex
 def test_three_points_latex():
     assertions = {
         "Heute hatte ich ... zum Mittagessen.": "\nHeute hatte ich~...~zum Mittagessen.\n",
@@ -57,6 +64,7 @@ def test_three_points_latex():
         assert mistletoe.markdown(key, FiftyOhmLaTeXRenderer) == value
 
 
+@pytest.mark.latex
 def test_absatz_latex():
     input = "Der Test befindet sich unter Abs.2 vielleicht aber auch Abs. 3."
     target = "\nDer Test befindet sich unter Abs.~2 vielleicht aber auch Abs.~3.\n"
@@ -64,6 +72,7 @@ def test_absatz_latex():
     assert mistletoe.markdown(input, FiftyOhmLaTeXRenderer) == target
 
 
+@pytest.mark.latex
 def test_class_latex():
     input = "Ich lerne für Klasse A, Klasse E und Klasse N."
     target = "\nIch lerne für Klasse~A, Klasse~E und Klasse~N.\n"
diff --git a/test/test_quote.py b/test/test_quote.py
index 6b42c98..a83f8e8 100644
--- a/test/test_quote.py
+++ b/test/test_quote.py
@@ -1,10 +1,12 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_quote_html():
     assertions = {
         '"quote"': "„quote“",
@@ -19,6 +21,7 @@ def test_quote_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == paragraph(assertions[assertion])
 
 
+@pytest.mark.latex
 def test_quote_latex():
     assertions = {
         '"quote"': "\n\enquote{quote}\n",
diff --git a/test/test_references.py b/test/test_references.py
index 80dff9d..4d60018 100644
--- a/test/test_references.py
+++ b/test/test_references.py
@@ -1,9 +1,11 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_references_html():
     # Right now this tests only the default values.
     # The correct behavior can be tested when the information is added to the renderer class
diff --git a/test/test_tag.py b/test/test_tag.py
index 7e579f0..25eefdd 100644
--- a/test/test_tag.py
+++ b/test/test_tag.py
@@ -1,9 +1,11 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 
 
+@pytest.mark.html
 def test_thematic_break_html():
     assertions = {
         "---": '<a id="margin_1"></a>\n',
@@ -14,6 +16,7 @@ def test_thematic_break_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == assertions[assertion]
 
 
+@pytest.mark.html
 def test_tag_html():
     assertions = {
         "<margin>\nFoo\n</margin>": FiftyOhmHtmlRenderer.render_tag_helper("margin", "<p>Foo</p>", 1, 0) + "\n",
@@ -33,6 +36,7 @@ def test_tag_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == assertions[assertion]
 
 
+@pytest.mark.html
 def test_thematic_break_and_tag_html():
     assertions = {
         "---\n<margin>\nFoo\n</margin>": '<a id="margin_1"></a>\n'
@@ -54,6 +58,7 @@ def test_thematic_break_and_tag_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == assertions[assertion]
 
 
+@pytest.mark.latex
 def test_thematic_break_latex():
     assertions = {
         "---": "",
@@ -64,6 +69,7 @@ def test_thematic_break_latex():
         assert mistletoe.markdown(assertion, FiftyOhmLaTeXRenderer) == assertions[assertion]
 
 
+@pytest.mark.latex
 def test_tag_latex():
     assertions = {
         "<margin>\nFoo\n</margin>": "\Margin{\nFoo\n}",
@@ -85,6 +91,7 @@ def test_tag_latex():
         assert mistletoe.markdown(assertion, FiftyOhmLaTeXRenderer) == assertions[assertion]
 
 
+@pytest.mark.latex
 def test_thematic_break_and_tag_latex():
     assertions = {
         "---\n<margin>\nFoo\n</margin>": "\Margin{\nFoo\n}",
diff --git a/test/test_underline.py b/test/test_underline.py
index 994175c..9edfe16 100644
--- a/test/test_underline.py
+++ b/test/test_underline.py
@@ -1,10 +1,12 @@
 import mistletoe
+import pytest
 
 from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 from renderer.fifty_ohm_latex_renderer import FiftyOhmLaTeXRenderer
 from test.util import paragraph
 
 
+@pytest.mark.html
 def test_underline_html():
     assertions = {
         "<u>Text</u>": "<u>Text</u>",
@@ -16,6 +18,7 @@ def test_underline_html():
         assert mistletoe.markdown(assertion, FiftyOhmHtmlRenderer) == paragraph(assertions[assertion])
 
 
+@pytest.mark.latex
 def test_underline_latex():
     assertions = {
         "<u>Text</u>": "\n\\underline{Text}\n",