diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index aa7ad55588d..f78be3e502f 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     strategy:
       max-parallel: 5
       matrix:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index aaab30764f0..5b324bea65e 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -8,7 +8,7 @@ jobs:
 
 - job: 'Test'
   pool:
-    vmImage: 'Ubuntu-16.04'
+    vmImage: 'Ubuntu-18.04'
   strategy:
     matrix:
       Python27:
@@ -19,7 +19,9 @@ jobs:
         python.version: '3.6'
       Python37:
         python.version: '3.7'
-    maxParallel: 4
+      Python38:
+        python.version: '3.8'
+    maxParallel: 5
 
   steps:
   - task: UsePythonVersion@0
@@ -59,6 +61,9 @@ jobs:
   - script: python -m pytest examples/my_first_test.py --browser=chrome --headless -v -s --junit-xml=junit/test-results.xml
     displayName: 'Run pytest my_first_test.py --browser=chrome --headless'
 
+  - script: python -m pytest examples/test_demo_site.py --browser=chrome --headless -v -s --junit-xml=junit/test-results.xml
+    displayName: 'Run pytest test_demo_site.py --browser=chrome --headless'
+
   #- script: python -m pytest examples/test_inspect_html.py --browser=chrome --headless -v -s --junit-xml=junit/test-results.xml
   #  displayName: 'Run pytest test_inspect_html.py --browser=chrome --headless'
 
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 9b2f93ab1d3..ea3f9ffd7f0 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,6 +1,6 @@
 livereload==2.6.2;python_version>="3.6"
 mkdocs==1.1.2
-mkdocs-material==5.3.3
+mkdocs-material==5.4.0
 mkdocs-simple-hooks==0.1.1
 mkdocs-material-extensions==1.0
 mkdocs-minify-plugin==0.3.0
diff --git a/seleniumbase/fixtures/base_case.py b/seleniumbase/fixtures/base_case.py
index bb72e2fd775..55e590d8d1b 100755
--- a/seleniumbase/fixtures/base_case.py
+++ b/seleniumbase/fixtures/base_case.py
@@ -3210,7 +3210,7 @@ def create_presentation(self, name=None, theme="default", show_notes=True):
             '<style>\n'
             'pre{background-color:#fbe8d4;border-radius:8px;}\n'
             'div[flex_div]{height:75vh;margin:0;align-items:center;'
-            'justify-content:center;display:flex;}\n'
+            'justify-content:center;}\n'
             'img[rounded]{border-radius:16px;max-width:82%%;}\n'
             '</style>\n'
             '</head>\n\n'
diff --git a/setup.py b/setup.py
index f3c801f53a0..1249d6987ca 100755
--- a/setup.py
+++ b/setup.py
@@ -54,7 +54,7 @@
 
 setup(
     name='seleniumbase',
-    version='1.42.0',
+    version='1.42.1',
     description='Fast, Easy, and Reliable Browser Automation & Testing.',
     long_description=long_description,
     long_description_content_type='text/markdown',