diff --git a/src/css/easymde.css b/src/css/easymde.css
index 73451e3..ca22867 100644
--- a/src/css/easymde.css
+++ b/src/css/easymde.css
@@ -15,7 +15,7 @@
 .EasyMDEContainer .CodeMirror {
     box-sizing: border-box;
     height: auto;
-    border: 1px solid #ddd;
+    border: 1px solid #ced4da;
     border-bottom-left-radius: 4px;
     border-bottom-right-radius: 4px;
     padding: 10px;