diff --git a/src/renderer/src/components/Playground/Output/Transform/index.tsx b/src/renderer/src/components/Playground/Output/Transform/index.tsx
index d135018..6883751 100644
--- a/src/renderer/src/components/Playground/Output/Transform/index.tsx
+++ b/src/renderer/src/components/Playground/Output/Transform/index.tsx
@@ -2,7 +2,7 @@ import MonacoEditor from '@monaco-editor/react'
 import { Loader } from 'esbuild-wasm'
 import '@/components/Playground/Output/Transform/transform.scss'
 import { IFile, ITheme } from '@/components/Playground/shared'
-import { cssToJs, jsonToJs } from '@/components/Playground/files'
+import { cssToJsFromFile, jsonToJsFromFile } from '@/components/Playground/files'
 import Compiler from '@/components/Playground/compiler'
 import { MonacoEditorConfig } from '@/components/Playground/CodeEditor/Editor/monacoConfig'
 
@@ -39,10 +39,10 @@ const Transform = ({ file, theme }: OutputProps) => {
                         compile(code, 'jsx')
                         break
                     case 'css':
-                        setCompiledCode(cssToJs(file))
+                        setCompiledCode(cssToJsFromFile(file))
                         break
                     case 'json':
-                        setCompiledCode(jsonToJs(file))
+                        setCompiledCode(jsonToJsFromFile(file))
                         break
                     case 'xml':
                         setCompiledCode(code)
diff --git a/src/renderer/src/components/Playground/compiler.ts b/src/renderer/src/components/Playground/compiler.ts
index fb2db42..418d6ab 100644
--- a/src/renderer/src/components/Playground/compiler.ts
+++ b/src/renderer/src/components/Playground/compiler.ts
@@ -1,9 +1,23 @@
-import esbuild, { Loader, OnLoadArgs, Plugin, PluginBuild } from 'esbuild-wasm'
+import esbuild, {
+    Loader,
+    OnLoadArgs,
+    OnLoadResult,
+    OnResolveArgs,
+    OnResolveResult,
+    Plugin,
+    PluginBuild
+} from 'esbuild-wasm'
 import localforage from 'localforage'
 import axios from 'axios'
 import esbuildWasmUrl from 'esbuild-wasm/esbuild.wasm?url'
 import { IFile, IFiles, IImportMap } from '@/components/Playground/shared'
-import { addReactImport, cssToJs, jsonToJs } from '@/components/Playground/files'
+import {
+    addReactImport,
+    cssToJs,
+    cssToJsFromFile,
+    jsonToJs,
+    jsonToJsFromFile
+} from '@/components/Playground/files'
 
 class Compiler {
     private init = false
@@ -27,44 +41,47 @@ class Compiler {
         }
     }
 
-    transform = (code: string, loader: Loader) =>
-        new Promise<void>((resolve) => {
-            if (this.init) {
-                resolve()
-                return
-            }
-            const timer = setInterval(() => {
-                if (this.init) {
-                    clearInterval(timer)
-                    resolve()
+    private waitInit = async () => {
+        if (!this.init) {
+            await new Promise<void>((resolve) => {
+                const checkInit = () => {
+                    if (this.init) {
+                        resolve()
+                    } else {
+                        setTimeout(checkInit, 100)
+                    }
                 }
-            }, 100)
-        }).then(() => {
-            return esbuild.transform(code, { loader })
-        })
-
-    compile = (files: IFiles, importMap: IImportMap, entryPoint: string) =>
-        new Promise<void>((resolve) => {
-            if (this.init) {
-                resolve()
-                return
-            }
-            const timer = setInterval(() => {
-                if (this.init) {
-                    clearInterval(timer)
-                    resolve()
-                }
-            }, 100)
-        }).then(() => {
-            return esbuild.build({
-                bundle: true,
-                entryPoints: [entryPoint],
-                format: 'esm',
-                metafile: true,
-                write: false,
-                plugins: [this.fileResolverPlugin(files, importMap)]
+                checkInit()
             })
+        }
+    }
+
+    transform = async (code: string, loader: Loader) => {
+        await this.waitInit()
+        return esbuild.transform(code, { loader })
+    }
+
+    compile = async (files: IFiles, importMap: IImportMap, entryPoint: string) => {
+        await this.waitInit()
+        return esbuild.build({
+            bundle: true,
+            entryPoints: [entryPoint],
+            format: 'esm',
+            metafile: true,
+            write: false,
+            plugins: [this.fileResolverPlugin(files, importMap)]
         })
+    }
+
+    compileCss = async (cssCode: string, basePath: string) => {
+        await this.waitInit()
+        return esbuild.build({
+            bundle: true,
+            entryPoints: [basePath],
+            write: false,
+            plugins: [this.cssCodeResolverPlugin(cssCode, basePath)]
+        })
+    }
 
     stop = () => {
         void esbuild.stop()
@@ -73,7 +90,7 @@ class Compiler {
     private fileResolverPlugin = (files: IFiles, importMap: IImportMap): Plugin => ({
         name: 'file-resolver-plugin',
         setup: (build: PluginBuild) => {
-            build.onResolve({ filter: /.*/ }, (args: esbuild.OnResolveArgs) => {
+            build.onResolve({ filter: /.*/ }, (args: OnResolveArgs): OnResolveResult => {
                 if (args.kind === 'entry-point') {
                     return {
                         namespace: 'oxygen',
@@ -135,54 +152,152 @@ class Compiler {
                 }
             })
 
-            build.onLoad({ filter: /.*\.css$/ }, (args: OnLoadArgs) => {
-                const contents = cssToJs(files[args.path])
+            build.onLoad({ filter: /.*\.css$/ }, (args: OnLoadArgs): OnLoadResult => {
+                const contents = cssToJsFromFile(files[args.path])
                 return {
                     loader: 'js',
                     contents
                 }
             })
 
-            build.onLoad({ filter: /.*\.json$/ }, (args: OnLoadArgs) => {
-                const contents = jsonToJs(files[args.path])
+            build.onLoad({ filter: /.*\.json$/ }, (args: OnLoadArgs): OnLoadResult => {
+                const contents = jsonToJsFromFile(files[args.path])
                 return {
                     loader: 'js',
                     contents
                 }
             })
 
-            build.onLoad({ namespace: 'oxygen', filter: /.*/ }, (args: OnLoadArgs) => {
-                let file: IFile | undefined
+            build.onLoad(
+                { namespace: 'oxygen', filter: /.*/ },
+                (args: OnLoadArgs): OnLoadResult | undefined => {
+                    let file: IFile | undefined
 
-                void ['', '.tsx', '.jsx', '.ts', '.js'].forEach((suffix) => {
-                    file = file || files[`${args.path}${suffix}`]
-                })
-                if (file) {
-                    return {
-                        loader: (() => {
-                            switch (file.language) {
-                                case 'javascript':
-                                    return 'jsx'
-                                default:
-                                    return 'tsx'
-                            }
-                        })(),
-                        contents: addReactImport(file.value)
+                    void ['', '.tsx', '.jsx', '.ts', '.js'].forEach((suffix) => {
+                        file = file || files[`${args.path}${suffix}`]
+                    })
+                    if (file) {
+                        return {
+                            loader: (() => {
+                                switch (file.language) {
+                                    case 'javascript':
+                                        return 'jsx'
+                                    default:
+                                        return 'tsx'
+                                }
+                            })(),
+                            contents: addReactImport(file.value)
+                        }
                     }
                 }
-            })
+            )
 
-            build.onLoad({ filter: /.*/ }, async (args: OnLoadArgs) => {
-                const cached = await this.fileCache.getItem<esbuild.OnLoadResult>(args.path)
+            build.onLoad({ filter: /.*/ }, async (args: OnLoadArgs): Promise<OnLoadResult> => {
+                const cached = await this.fileCache.getItem<OnLoadResult>(args.path)
 
                 if (cached) {
                     return cached
                 }
 
-                const axiosResponse = await axios.get<string>(args.path)
-                const result: esbuild.OnLoadResult = {
-                    loader: 'js',
-                    contents: axiosResponse.data,
+                const axiosResponse = await axios.get<ArrayBuffer>(args.path, {
+                    responseType: 'arraybuffer'
+                })
+                const contentType = axiosResponse.headers['content-type'] as string
+                const utf8Decoder = new TextDecoder('utf-8')
+                const result: OnLoadResult = {
+                    loader: (() => {
+                        if (
+                            contentType.includes('javascript') ||
+                            contentType.includes('css') ||
+                            contentType.includes('json')
+                        ) {
+                            return 'js'
+                        }
+                        return 'base64'
+                    })(),
+                    contents: await (async () => {
+                        if (contentType.includes('css')) {
+                            return cssToJs(
+                                (
+                                    await this.compileCss(
+                                        utf8Decoder.decode(axiosResponse.data),
+                                        args.path
+                                    )
+                                ).outputFiles[0].text
+                            )
+                        }
+                        if (contentType.includes('json')) {
+                            return jsonToJs(utf8Decoder.decode(axiosResponse.data))
+                        }
+                        return new Uint8Array(axiosResponse.data)
+                    })(),
+                    resolveDir: args.path
+                }
+
+                await this.fileCache.setItem(args.path, result)
+
+                return result
+            })
+        }
+    })
+
+    private cssCodeResolverPlugin = (cssCode: string, basePath: string): Plugin => ({
+        name: 'css-code-resolver-plugin',
+        setup: (build: PluginBuild) => {
+            build.onResolve({ filter: /.*/ }, (args: OnResolveArgs): OnResolveResult => {
+                if (args.kind === 'entry-point') {
+                    return {
+                        namespace: 'default',
+                        path: basePath
+                    }
+                }
+                return {
+                    namespace: 'default',
+                    path: args.resolveDir.length
+                        ? new URL(args.path, args.resolveDir.substring(1)).href
+                        : new URL(args.path, basePath).href
+                }
+            })
+
+            build.onLoad({ filter: /.*/ }, async (args: OnLoadArgs): Promise<OnLoadResult> => {
+                if (args.path === basePath) {
+                    return {
+                        loader: 'css',
+                        contents: cssCode,
+                        resolveDir: basePath
+                    }
+                }
+                const cached = await this.fileCache.getItem<OnLoadResult>(args.path)
+
+                if (cached) {
+                    return cached
+                }
+
+                const axiosResponse = await axios.get<ArrayBuffer>(args.path, {
+                    responseType: 'arraybuffer'
+                })
+                const contentType = axiosResponse.headers['content-type'] as string
+                const utf8Decoder = new TextDecoder('utf-8')
+                const result: OnLoadResult = {
+                    loader: (() => {
+                        if (contentType.includes('css')) {
+                            return 'js'
+                        }
+                        return 'dataurl'
+                    })(),
+                    contents: await (async () => {
+                        if (contentType.includes('css')) {
+                            return cssToJs(
+                                (
+                                    await this.compileCss(
+                                        utf8Decoder.decode(axiosResponse.data),
+                                        args.path
+                                    )
+                                ).outputFiles[0].text
+                            )
+                        }
+                        return new Uint8Array(axiosResponse.data)
+                    })(),
                     resolveDir: args.path
                 }
 
diff --git a/src/renderer/src/components/Playground/files.ts b/src/renderer/src/components/Playground/files.ts
index 4769b99..4577cbe 100644
--- a/src/renderer/src/components/Playground/files.ts
+++ b/src/renderer/src/components/Playground/files.ts
@@ -83,21 +83,25 @@ export const jsToBlob = (code: string) => {
     return URL.createObjectURL(new Blob([code], { type: 'application/javascript' }))
 }
 
-export const jsonToJs = (file: IFile) => {
-    return `export default ${file.value}`
+export const jsonToJs = (code: string) => {
+    return `export default ${code}`
 }
 
-export const cssToJs = (file: IFile) => {
+export const jsonToJsFromFile = (file: IFile) => {
+    return jsonToJs(file.value)
+}
+
+export const cssToJs = (code: string, fileName?: string) => {
     const randomId = new Date().getTime()
     return `(() => {
-  let stylesheet = document.getElementById('style_${randomId}_${file.name}');
+  let stylesheet = document.getElementById('style_${randomId}${fileName ? `_${fileName}` : ''}');
   if (!stylesheet) {
     stylesheet = document.createElement('style')
-    stylesheet.setAttribute('id', 'style_${randomId}_${file.name}')
+    stylesheet.setAttribute('id', 'style_${randomId}_${fileName ? `_${fileName}` : ''}')
     document.head.appendChild(stylesheet)
   }
   const styles = document.createTextNode(
-\`${file.value}\`
+\`${code}\`
     )
   stylesheet.innerHTML = ''
   stylesheet.appendChild(styles)
@@ -105,6 +109,10 @@ export const cssToJs = (file: IFile) => {
 `
 }
 
+export const cssToJsFromFile = (file: IFile) => {
+    return cssToJs(file.value, file.name)
+}
+
 export const addReactImport = (code: string) => {
     if (!/^\s*import\s+React\s+/g.test(code)) {
         return `import React from 'react';\n${code}`