diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e1e9459..19048a23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 - The link modal UI now reflects Craft’s native Link fields. ([#375](https://github.com/craftcms/ckeditor/pull/375))
 - Added support for drag-n-drop image uploading. ([#486](https://github.com/craftcms/ckeditor/pull/486))
 - Added the “Advanced Link Fields” setting to CKEditor configs. ([#375](https://github.com/craftcms/ckeditor/pull/375))
+- Custom editor styles now get registered with a higher specificity than the default editor styles. ([#433](https://github.com/craftcms/ckeditor/pull/433)) 
 - Added `craft\ckeditor\helpers\CkeditorConfig`. ([#363](https://github.com/craftcms/ckeditor/pull/363))
 - Added `craft\ckeditor\web\assets\BaseCkeditorPackageAsset::$namespace`. ([#363](https://github.com/craftcms/ckeditor/pull/363))
 - Added `craft\ckeditor\CkeConfig::$advancedLinkFields`.
diff --git a/src/Field.php b/src/Field.php
index a4b3feb3..7ecadfb1 100644
--- a/src/Field.php
+++ b/src/Field.php
@@ -1308,11 +1308,8 @@ private function _inputHtml(mixed $value, ?ElementInterface $element, bool $stat
             ['type' => 'module']
         );
 
-        if ($ckeConfig->css) {
-            $view->registerCss($ckeConfig->css);
-        }
-
         $value = $this->prepValueForInput($value, $element);
+        $inputId = Html::id('input-ckeditor-' . $id);
         $html = Html::textarea($this->handle, $value, [
             'id' => $id,
             'class' => 'hidden',
@@ -1325,10 +1322,15 @@ private function _inputHtml(mixed $value, ?ElementInterface $element, bool $stat
             ]);
         }
 
+        if ($ckeConfig->css) {
+            $view->registerCss("#{$view->namespaceInputId($inputId)} { $ckeConfig->css }");
+        }
+
         return Html::tag('div', $html, [
             'class' => array_filter([
                 $this->showWordCount ? 'ck-with-show-word-count' : null,
             ]),
+            'id' => $inputId,
             'data' => [
                 'element-id' => $element?->id,
                 'config' => $this->ckeConfig,