* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.
* 문제 해결을 위해 어떤 시도를 해보았는지 구체<적으로 함께 알려주세요.
프로젝트2를 하고있는데요,<style> 괄호안에 .mycards를 추가할려고하는데 빈규칙 집합을 사용하지말라고 하는데 어떻게 해결이 안되나요?
<!DOCTYPE html>
<html lang="en">
...
</html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>스파르타플릭스</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<style>
* {
font-family: 'Black Han Sans', sans-serif;
}
.main {
color: white;
background-image: url('https://occ-0-1123-1217.1.nflxso.net/dnm/api/v6/6AYY37jfdO6hpXcMjf9Yu5cnmO0/AAAABeIfo7VL_VDyKnljV66IkR-4XLb6xpZqhpLSo3JUtbivnEW4s60PD27muH1mdaANM_8rGpgbm6L2oDgA_iELHZLZ2IQjG5lvp5d2.jpg?r=e6e.jpg');
background-position: center;
background-size: cover;
}
body {
background-color: black;
}
</style>
</head>
<body>
<header class="p-3 text-bg-dark">
<div class="container">
<div class="d-flex flex-wrap align-items-center justify-content-center justify-content-lg-start">
<a href="/" class="d-flex align-items-center mb-2 mb-lg-0 text-white text-decoration-none">
<svg class="bi me-2" width="40" height="32" role="img" aria-label="Bootstrap">
<use xlink:href="#bootstrap"></use>
</svg>
</a>
<ul class="nav col-12 col-lg-auto me-lg-auto mb-2 justify-content-center mb-md-0">
<li><a href="#" class="nav-link px-2 text-danger">spartafilx</a></li>
<li><a href="#" class="nav-link px-2 text-white">홈</a></li>
<li><a href="#" class="nav-link px-2 text-white">시리즈</a></li>
<li><a href="#" class="nav-link px-2 text-white">영화</a></li>
<li><a href="#" class="nav-link px-2 text-white">내가 찜한 컨텐츠</a></li>
</ul>
<form class="col-12 col-lg-auto mb-3 mb-lg-0 me-lg-3" role="search">
<input type="search" class="form-control form-control-dark text-bg-dark" placeholder="Search..."
aria-label="Search">
</form>
<div class="text-end">
<button type="button" class="btn btn-outline-light me-2">Login</button>
<button type="button" class="btn btn-danger">Sign-up</button>
</div>
</div>
</div>
</header>
<div class="main">
<div class="p-5 mb-4 bg-body-tertiary rounded-3">
<div class="container-fluid py-5">
<h1 class="display-5 fw-bold">킹덤</h1>
<p class="col-md-8 fs-4">병든 왕을 둘러싸고 흉흉한 소문이 떠돈다. 어둠에 뒤덮인 조선, 기이한 역병에 신음하는 산하. 정체 모를 악에 맞서 백성을 구원할 희망은 오직
세자뿐이다..</p>
<button type="button" class="btn btn-outline-light">영화 기록하기</button>
<button type="button" class="btn btn-outline-light">상세정보</button>
</div>
</div>
</div>
<div class="mycards">
<div class="row row-cols-1 row-cols-md-4 g-4">
<div class="col">
<div class="card h-100">
<img src="https://movie-phinf.pstatic.net/20210728_221/1627440327667GyoYj_JPEG/movie_image.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">영화 제목</h5>
<p class="card-text">⭐⭐⭐</p>
<p class="card-text">영화 코멘트</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="https://movie-phinf.pstatic.net/20210728_221/1627440327667GyoYj_JPEG/movie_image.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">영화 제목</h5>
<p class="card-text">⭐⭐⭐</p>
<p class="card-text">영화 코멘트</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="https://movie-phinf.pstatic.net/20210728_221/1627440327667GyoYj_JPEG/movie_image.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">영화 제목</h5>
<p class="card-text">⭐⭐⭐</p>
<p class="card-text">영화 코멘트</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="https://movie-phinf.pstatic.net/20210728_221/1627440327667GyoYj_JPEG/movie_image.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">영화 제목</h5>
<p class="card-text">⭐⭐⭐</p>
<p class="card-text">영화 코멘트</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
