diff --git a/package.json b/package.json
index 01b2a02..2b394e0 100644
--- a/package.json
+++ b/package.json
@@ -50,6 +50,7 @@
     "vite-plugin-dts": "^2.0.2"
   },
   "dependencies": {
+    "csstype": "^3.1.2",
     "rollup-plugin-polyfill-node": "^0.12.0"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e37ff40..f7aa227 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1,6 +1,9 @@
 lockfileVersion: '6.0'
 
 dependencies:
+  csstype:
+    specifier: ^3.1.2
+    version: 3.1.2
   rollup-plugin-polyfill-node:
     specifier: ^0.12.0
     version: 0.12.0(rollup@3.18.0)
@@ -1804,6 +1807,10 @@ packages:
       cssom: 0.3.8
     dev: true
 
+  /csstype@3.1.2:
+    resolution: {integrity: sha512-I7K1Uu0MBPzaFKg4nI5Q7Vs2t+3gWWW648spaF+Rg7pI9ds18Ugn+lvg4SHczUdKlHI5LWBXyqfS8+DufyBsgQ==}
+    dev: false
+
   /data-urls@3.0.2:
     resolution: {integrity: sha512-Jy/tj3ldjZJo63sVAvg6LHt2mHvl4V6AgRAmNDtLdm7faqtsx+aJG42rsyCo9JCoRVKwPFzKlIPx3DIibwSIaQ==}
     engines: {node: '>=12'}