Code block moves off screen in editor about wagtailcodeblock HOT 4 CLOSED

diff --git a/blog/models.py b/blog/models.py
index 08fa2f9..141c1f2 100644
--- a/blog/models.py
+++ b/blog/models.py
@@ -20,6 +20,8 @@ from wagtail.wagtailsnippets.models import register_snippet
 from wagtail.wagtailsnippets.edit_handlers import SnippetChooserPanel
 from django.utils.encoding import python_2_unicode_compatible
 
+# https://github.com/FlipperPA/wagtailcodeblock
+from wagtailcodeblock.blocks import CodeBlock
 
 from modelcluster.fields import ParentalKey
 from modelcluster.contrib.taggit import ClusterTaggableManager
@@ -112,6 +114,8 @@ class BlogPage(Page):
     body = StreamField([
         ('heading', blocks.CharBlock(classname="full title")),
         ('paragraph', blocks.RichTextBlock()),
+        ('raw_html', blocks.RawHTMLBlock()),
+        ('code_block', CodeBlock()),
         ('image', ImageChooserBlock()),
         ('file', DocumentChooserBlock()),
     ])
diff --git a/karlsblog/settings/base.py b/karlsblog/settings/base.py
index fb761a4..f2cb9ab 100644
--- a/karlsblog/settings/base.py
+++ b/karlsblog/settings/base.py
@@ -52,6 +52,7 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
 
     'blog',
+    'wagtailcodeblock',
 ]
 
 MIDDLEWARE = [

class BlogPage(Page):
    body = StreamField([
        ('heading', blocks.CharBlock(classname="full title")),
        ('paragraph', blocks.RichTextBlock()),
        ('raw_html', blocks.RawHTMLBlock()),
        ('code_block', CodeBlock()),
        ('image', ImageChooserBlock()),
        ('file', DocumentChooserBlock()),
    ])
    content_panels = Page.content_panels + [
        StreamFieldPanel('body'),
    ]