From 6823354cdb704b1ee0e36ca04ed5e839e92d2c87 Mon Sep 17 00:00:00 2001
From: Jason Chen <3380894+jas0ncn@users.noreply.github.com>
Date: Wed, 28 Jun 2023 14:19:30 +0800
Subject: [PATCH 1/2] fix: incorrect insertBefore target

---
 src/Dom/dynamicCSS.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Dom/dynamicCSS.ts b/src/Dom/dynamicCSS.ts
index ed2d8973..42d61212 100644
--- a/src/Dom/dynamicCSS.ts
+++ b/src/Dom/dynamicCSS.ts
@@ -75,9 +75,11 @@ export function injectCSS(css: string, option: Options = {}) {
         ['prepend', 'prependQueue'].includes(node.getAttribute(APPEND_ORDER)),
       );
       if (existStyle.length) {
-        container.insertBefore(
+        const lastStyle = existStyle[existStyle.length - 1].nextSibling;
+
+        lastStyle?.parentNode?.insertBefore(
           styleNode,
-          existStyle[existStyle.length - 1].nextSibling,
+          lastStyle,
         );
 
         return styleNode;

From 585303e3fe58b372c780b0dbfcc98a0ddafde1ec Mon Sep 17 00:00:00 2001
From: Jason Chen <3380894+jas0ncn@users.noreply.github.com>
Date: Wed, 28 Jun 2023 14:44:48 +0800
Subject: [PATCH 2/2] chore: select parentNode directly

---
 src/Dom/dynamicCSS.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Dom/dynamicCSS.ts b/src/Dom/dynamicCSS.ts
index 42d61212..639b5bcd 100644
--- a/src/Dom/dynamicCSS.ts
+++ b/src/Dom/dynamicCSS.ts
@@ -75,11 +75,11 @@ export function injectCSS(css: string, option: Options = {}) {
         ['prepend', 'prependQueue'].includes(node.getAttribute(APPEND_ORDER)),
       );
       if (existStyle.length) {
-        const lastStyle = existStyle[existStyle.length - 1].nextSibling;
+        const lastStyle = existStyle[existStyle.length - 1];
 
         lastStyle?.parentNode?.insertBefore(
           styleNode,
-          lastStyle,
+          lastStyle.nextSibling,
         );
 
         return styleNode;