diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index da3d946a..2813c23d 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -990,11 +990,6 @@ parameters:
 			count: 1
 			path: src/lib/RichText/ConverterDispatcher.php
 
-		-
-			message: "#^Strict comparison using \\=\\=\\= between string and null will always evaluate to false\\.$#"
-			count: 1
-			path: src/lib/RichText/ConverterDispatcher.php
-
 		-
 			message: "#^Method Ibexa\\\\FieldTypeRichText\\\\RichText\\\\Exception\\\\InvalidXmlException\\:\\:__construct\\(\\) has parameter \\$errors with no value type specified in iterable type array\\.$#"
 			count: 1
@@ -1270,11 +1265,6 @@ parameters:
 			count: 1
 			path: src/lib/RichText/Validator/ValidatorDispatcher.php
 
-		-
-			message: "#^Strict comparison using \\=\\=\\= between string and null will always evaluate to false\\.$#"
-			count: 1
-			path: src/lib/RichText/Validator/ValidatorDispatcher.php
-
 		-
 			message: "#^Method Ibexa\\\\FieldTypeRichText\\\\RichText\\\\XmlBase\\:\\:startRecordingErrors\\(\\) has no return type specified\\.$#"
 			count: 1
diff --git a/src/bundle/Resources/public/scss/_balloon-form.scss b/src/bundle/Resources/public/scss/_balloon-form.scss
index aa644b81..f7039506 100644
--- a/src/bundle/Resources/public/scss/_balloon-form.scss
+++ b/src/bundle/Resources/public/scss/_balloon-form.scss
@@ -126,4 +126,8 @@
             padding: 0 calculateRem(16px) calculateRem(16px);
         }
     }
+
+    .ck-balloon-panel_visible {
+        z-index: 300;
+    }
 }