package main

import (
"awesomeProject/Router"
 "embed"
 "net/http"
)

//go:embed frontend
var Content embed.FS

func main() {
// Serve static files under the "/static" path
 http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.FS(Content))))

// Create a new handler using the router
 mux := Router.NewHandler()

// Listen and serve on port 8081
 http.ListenAndServe(":8081", mux)
}
<!-- index.html -->
<!DOCTYPE html>
<html lang="ko">
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<link rel="stylesheet" href="/static/css/home.css">
<head>
 <meta charset="UTF-8">
 <title>환영</title>
</head>
<body>
<section class="rain">
</section>
<section class="img">
 <img src="/static/img/표지.png" alt="표지사진">
 <p class="blink">Touch to Start</p>
 <audio id="audio" autoplay loop>
 <source src="https://ccrma.stanford.edu/~jos/mp3/harpsi-cs.mp3" type="audio/mp3">
 </audio>
</section>
</body>
<script src="/static/js/rain.js"></script>
</html>

프론트 파일 구조는 - awesomeProject - frontend - css - home.css - img - 표지.png - js - rain.js - index.html 이렇습니다 
몇시간쨰 찾아보면서 해도 안되네요 왜이러는 걸까요 ㅜ