diff --git a/requirements.txt b/requirements.txt
index 0323a64..fb0fce9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ pyppeteer==0.0.25
 loguru==0.4.1
 djangorestframework==3.9.1
 requests==2.24.0
+setuptools-scm
 whoosh==2.7.4
 django-haystack==3.0
 Markdown==3.3.3
diff --git a/static/editor.md/css/editormd.css b/static/editor.md/css/editormd.css
index 07f42d3..c0b282d 100644
--- a/static/editor.md/css/editormd.css
+++ b/static/editor.md/css/editormd.css
@@ -4048,7 +4048,7 @@ li.L9 {
 
 .editormd-preview-container pre.prettyprint, .editormd-html-preview pre.prettyprint {
   padding: 10px;
-  border: 1px solid #ddd;
+  border: 0px solid #ddd;
   white-space: pre-wrap;
   word-wrap: break-word;
 }