diff --git a/app/static/css/comments.scss b/app/static/css/comments.scss
index 586abac..8b6f9cc 100644
--- a/app/static/css/comments.scss
+++ b/app/static/css/comments.scss
@@ -18,7 +18,8 @@
 .add-comment {
     box-sizing: border-box;
     width: 100%;
-    height: 30vh;
+    min-height: 30vh;
+    height: 100%;
     padding-top: 8px;
     padding-left: 4px;