
1-15강의 중 2:09 부분처럼 카드 테두리가 생기지 않아요.

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작성한 코드 및 에러 메세지
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
@import url('https://fonts.googleapis.com/css2?family=Gowun+Dodum&display=swap');
* {
font-family: 'Gowun Dodum', sans-serif;
}
.mytitle {
background-color: green;
color: white;
height: 250px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://movie-phinf.pstatic.net/20210715_95/1626338192428gTnJl_JPEG/movie_image.jpg');
background-position: center;
background-size: cover;
}
.mytitle>button {
width: 250px;
height: 50px;
background-color: transparent;
color: white;
border: 1px solid white;
border-radius: 50px;
margin-top: 20px;
/* font-size: large; */
}
.mytitle>button:hover {
border: 2px solid white;
}
</style>
</head>
<body>
<div class=" mytitle">
<h1> 내 생애 최고의 영화들</h1>
<button> 영화 기록하기 </button>
</div>
<div class="mycards">
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to
additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a short card.</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to
additional content.</p>
</div>
</div>
</div>
<div class="col">
<div class="card h-100">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card title</h5>
<p class="card-text">This is a longer card with supporting text below as a natural lead-in to
additional content. This content is a little bit longer.</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
