diff --git a/package-lock.json b/package-lock.json
index dbc8783..09ae467 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1375,6 +1375,12 @@
             "@pushrocks/smartlog-interfaces": "^2.0.20"
           }
         },
+        "@types/node": {
+          "version": "14.17.0",
+          "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-14.17.0.tgz",
+          "integrity": "sha512-w8VZUN/f7SSbvVReb9SWp6cJFevxb4/nkG65yLAya//98WgocKm5PLDAtSs5CtJJJM+kHmJjO/6mmYW4MHShZA==",
+          "dev": true
+        },
         "typescript": {
           "version": "4.2.4",
           "resolved": "https://verdaccio.lossless.one/typescript/-/typescript-4.2.4.tgz",
@@ -2861,6 +2867,14 @@
             "@pushrocks/smartparam": "^1.1.6",
             "@pushrocks/smartpromise": "^3.0.6",
             "@types/node": "^14.0.14"
+          },
+          "dependencies": {
+            "@types/node": {
+              "version": "14.17.0",
+              "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-14.17.0.tgz",
+              "integrity": "sha512-w8VZUN/f7SSbvVReb9SWp6cJFevxb4/nkG65yLAya//98WgocKm5PLDAtSs5CtJJJM+kHmJjO/6mmYW4MHShZA==",
+              "dev": true
+            }
           }
         }
       }
@@ -3179,9 +3193,9 @@
       "integrity": "sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA=="
     },
     "@types/node": {
-      "version": "14.14.20",
-      "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-14.14.20.tgz",
-      "integrity": "sha512-Y93R97Ouif9JEOWPIUyU+eyIdyRqQR0I8Ez1dzku4hDx34NWh4HbtIc3WNzwB1Y9ULvNGeu5B8h8bVL5cAk4/A=="
+      "version": "15.3.0",
+      "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-15.3.0.tgz",
+      "integrity": "sha512-8/bnjSZD86ZfpBsDlCIkNXIvm+h6wi9g7IqL+kmFkQ+Wvu3JrasgLElfiPgoo8V8vVfnEi0QVS12gbl94h9YsQ=="
     },
     "@types/parcel-bundler": {
       "version": "1.12.3",
@@ -11005,6 +11019,14 @@
         "@types/sax": "^1.2.1",
         "arg": "^4.1.3",
         "sax": "^1.2.4"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "14.17.0",
+          "resolved": "https://verdaccio.lossless.one/@types%2fnode/-/node-14.17.0.tgz",
+          "integrity": "sha512-w8VZUN/f7SSbvVReb9SWp6cJFevxb4/nkG65yLAya//98WgocKm5PLDAtSs5CtJJJM+kHmJjO/6mmYW4MHShZA==",
+          "dev": true
+        }
       }
     },
     "smartchai": {
diff --git a/package.json b/package.json
index bdaa1a0..24b30a0 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@gitzone/tstest": "^1.0.54",
     "@pushrocks/smartserve": "^1.1.41",
     "@pushrocks/tapbundle": "^3.2.14",
-    "@types/node": "^14.14.20",
+    "@types/node": "^15.3.0",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.15.0"
   },
diff --git a/test/test.ts b/test/test.ts
index 4f3cd10..0643f5e 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -23,6 +23,7 @@ tap.skip.test('should render lossless.com', async () => {
 
 tap.skip.test('should render https://lossless.gmbh', async () => {
   const renderedPage = await testSSRInstance.renderPage('https://lossless.gmbh');
+  console.log(renderedPage);
 });
 
 tap.test('should stop the smartssr instance', async () => {
diff --git a/ts/smartssr.function.serialize.ts b/ts/smartssr.function.serialize.ts
index 4e22944..e3468cb 100644
--- a/ts/smartssr.function.serialize.ts
+++ b/ts/smartssr.function.serialize.ts
@@ -39,6 +39,8 @@ export function serializeFunction(rootNode) {
       const nodeUUID = uuidv4();
 
       nodeArg.classList.add(nodeUUID);
+
+      // find all slots
       const slots = nodeArg.shadowRoot.querySelectorAll('slot');
 
       // handle slot element
@@ -59,6 +61,14 @@ export function serializeFunction(rootNode) {
       const childNodes = nodeArg.shadowRoot.childNodes;
       // tslint:disable-next-line: prefer-for-of
       const noteForAppending: HTMLElement[] = [];
+
+      // lets care about static css first
+      if ((nodeArg.constructor as any).styles?.cssText) {
+        const styleTag = document.createElement('style');
+        styleTag.textContent = prependCss(nodeUUID, (nodeArg.constructor as any).styles.cssText);
+        noteForAppending.push(styleTag);
+      }
+
       childNodes.forEach((childNode) => {
         if (childNode instanceof HTMLElement) {
           if (childNode.tagName === 'STYLE') {