
보이는 화면에서 한줄 밑으로 생성 말고, 영화기록하기 카드처럼 화면에 4개씩 카드가 생성되도록 정렬하고 싶은데 안되네요
카드가 4개씩 정렬되게 하려면 어떻게 해야하나요?

작성한 코드 및 에러 메세지
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<title>Be Abstract | Artists</title>
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<style>
.myhead {
font-family: 'East Sea Dokdo', cursive;
font-family: 'Nanum Brush Script', cursive;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.myhead > h1 {
font-size: 80px;
margin: 0px auto 30px auto;
}
body {
background-position: center;
background-size: cover;
}
h1 {
font-weight: bold;
}
.artists_card {
width: 500px;
margin: 10px auto 0px auto;
padding-bottom: 60px;
}
.order > table {
margin: 40px 0;
font-size: 18px;
}
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margin: 0px auto 20px auto;
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option {
color: black;
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<div class="container px-4 px-lg-5">
<a class="navbar-brand" onclick="location.href='index.html'">Be Abstract</a>
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person_add
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person
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<h2>More Creative, Value Creation</h2>
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<section class="py-5">
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="artists_card col">
<div class="card">
<img src="https://dummyimage.com/450x300/dee2e6/6c757d.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">작가 활동명(등단 시점)</h5>
<p class="card-text">30자 요약 작가 설명</p>
</div>
<div class="card-body">
<a href="#" class="card-link">Profile</a>
<a href="#" class="card-link">Portfolio</a>
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<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="artists_card col">
<div class="card">
<img src="https://dummyimage.com/450x300/dee2e6/6c757d.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">작가 활동명(등단 시점)</h5>
<p class="card-text">30자 요약 작가 설명</p>
</div>
<div class="card-body">
<a href="#" class="card-link">Profile</a>
<a href="#" class="card-link">Portfolio</a>
</div>
</div>
</div>
</div>
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="artists_card col">
<div class="card">
<img src="https://dummyimage.com/450x300/dee2e6/6c757d.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">작가 활동명(등단 시점)</h5>
<p class="card-text">30자 요약 작가 설명</p>
</div>
<div class="card-body">
<a href="#" class="card-link">Profile</a>
<a href="#" class="card-link">Portfolio</a>
</div>
</div>
</div>
</div>
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="artists_card col">
<div class="card">
<img src="https://dummyimage.com/450x300/dee2e6/6c757d.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">작가 활동명(등단 시점)</h5>
<p class="card-text">30자 요약 작가 설명</p>
</div>
<div class="card-body">
<a href="#" class="card-link">Profile</a>
<a href="#" class="card-link">Portfolio</a>
</div>
</div>
</div>
</div>
<div class="row row-cols-1 row-cols-md-3 g-4">
<div class="artists_card col">
<div class="card">
<img src="https://dummyimage.com/450x300/dee2e6/6c757d.jpg" class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">작가 활동명(등단 시점)</h5>
<p class="card-text">30자 요약 작가 설명</p>
</div>
<div class="card-body">
<a href="#" class="card-link">Profile</a>
<a href="#" class="card-link">Portfolio</a>
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