
안녕하세요! 숙제를 하다가 궁금한 점이 발생해서 문의 드립니다.
다른 점들은 해설로 얼추 이해가 됐는데,
저 응원 남기기 버튼 스타일을 어떻게 줘야 하는지 궁금해서 여쭤봅니다!
그리고 처음에는 저 버튼이 약간 왼쪽에서 조금 떨어진? 상황이었는데 혹시 그런건 왜그런건지 아시나요?
스페이스바를 한두번 누른것 처럼 보이는 상태?였습니다.

작성한 코드 및 에러 메세지
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"
integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM"
crossorigin="anonymous"></script>
<title>스파르타코딩클럽 | 부트스트랩 연습하기</title>
<link href="https://fonts.googleapis.com/css2?family=Nanum+Gothic+Coding&display=swap" rel="stylesheet">
<style>
* {
font-family: 'Nanum Gothic Coding', swap;
}
.mytitle {
height: 500px;
width: 100%;
background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url("https://search.pstatic.net/common/?src=http%3A%2F%2Fblogfiles.naver.net%2FMjAyMTA0MjNfMjEz%2FMDAxNjE5MTgzOTUyNDU0.U6s5KDr65R5caiSWfVjPWqOoRDufNcjJoz14Y8ZVWE4g._BiQhPYJYjueBB7Z6IFrr7aDSAvIjR-M-_UbTLBY9jAg.JPEG.cwmylee%2FIMG_2918.JPG&type=sc960_832");
background-size: center;
color: white;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.mypost{
max-width:500px;
width: 95%;
margin: 20px auto 0px auto;
box-shadow: 0px 0px 3px 0px gray;
padding: 20px;
}
.mypost>button {
margin-top 10px;
}
.card{
max-width: 500px;
width: 95%;
margin: 20px auto 0px auto;
padding: 20px;
}
</style>
</head>
<body>
<div class="mytitle">
<h1>십센치(10cm) 팬명록</h1>
</div>
<div class="mypost">
<div class="form-floating mb-3">
<input type="email" class="form-control" id="floatingInput" placeholder="name@example.com">
<label for="floatingInput">닉네임</label>
</div>
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea"
style="height: 100px"></textarea>
<label for="floatingTextarea">응원댓글</label>
</div>
<button onclick="save_comment()" type="button" class="btn btn-dark" >응원 남기기</button>
</div>
</div>
<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>새로운 앨범 너무 멋져요!</p>
<footer class="blockquote-footer">호빵맨</footer>
</blockquote>
</div>
</div>
<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>새로운 앨범 너무 멋져요!</p>
<footer class="blockquote-footer">호빵맨</footer>
</blockquote>
</div>
</div>
<div class="card">
<div class="card-body">
<blockquote class="blockquote mb-0">
<p>새로운 앨범 너무 멋져요!</p>
<footer class="blockquote-footer">호빵맨</footer>
</blockquote>
</div>
</div>
</body>
</html>
