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[k디지털크레딧] 9. Javascript 맛보기

<!doctype html>
<html lang="en">

<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
          integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
            integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
            crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
            integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
            crossorigin="anonymous"></script>

    <title>스파르타코딩클럽 | 부트스트랩 연습하기</title>
    <link href="https://fonts.googleapis.com/css2?family=Jua&display=swap" rel="stylesheet">
    <style>
        * {
            font-family: 'Jua', sans-serif;
        }

        .wrap {
            width: 900px;
            margin: auto;
        }

        .comment {
            color: blue;
            font-weight: bold;

        }
    </style>
    <script>
        function hey() {
            alert('안녕!!')
        }
    </script>
</head>

<body>
<div class="wrap">
    <div class="jumbotron">
        <h1 class="display-4">나홀로 링크 메모장!</h1>
        <p class="lead">중요한 링크를 저장해두고, 나중에 볼 수 있는 공간입니다</p>
        <hr class="my-4">
        <a onclick="hey()" class="btn btn-primary btn-lg" href="#" role="button">포스팅박스 열기</a>
        </p>
    </div>
    <div class="card-columns">
        <div class="card">
            <img class="card-img-top"
                 src="https://a.cdn-hotels.com/gdcs/production40/d811/5e89ad90-8f10-11e8-b6b0-0242ac110007.jpg"
                 alt="Card image cap">
            <div class="card-body">
                <a href="http://naver.com/" class="card-title">여기 기사 제목이 들어가죠</a>
                <p class="card-text">기사의 요약 내용이 들어갑니다. 동해물과 백두산이 마르고 닳도록 하느님이 보우하사 우리나라만세 무궁화 삼천리 화려강산...</p>
                <p class="card-text comment">여기에 코멘트가 들어갑니다</p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top"
                 src="https://a.cdn-hotels.com/gdcs/production40/d811/5e89ad90-8f10-11e8-b6b0-0242ac110007.jpg"
                 alt="Card image cap">
            <div class="card-body">
                <a href="http://naver.com/" class="card-title">여기 기사 제목이 들어가죠</a>
                <p class="card-text">기사의 요약 내용이 들어갑니다. 동해물과 백두산이 마르고 닳도록 하느님이 보우하사 우리나라만세 무궁화 삼천리 화려강산...</p>
                <p class="card-text comment">여기에 코멘트가 들어갑니다</p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top"
                 src="https://a.cdn-hotels.com/gdcs/production40/d811/5e89ad90-8f10-11e8-b6b0-0242ac110007.jpg"
                 alt="Card image cap">
            <div class="card-body">
                <a href="http://naver.com/" class="card-title">여기 기사 제목이 들어가죠</a>
                <p class="card-text">기사의 요약 내용이 들어갑니다. 동해물과 백두산이 마르고 닳도록 하느님이 보우하사 우리나라만세 무궁화 삼천리 화려강산...</p>
                <p class="card-text comment">여기에 코멘트가 들어갑니다</p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top"
                 src="https://a.cdn-hotels.com/gdcs/production40/d811/5e89ad90-8f10-11e8-b6b0-0242ac110007.jpg"
                 alt="Card image cap">
            <div class="card-body">
                <a href="http://naver.com/" class="card-title">여기 기사 제목이 들어가죠</a>
                <p class="card-text">기사의 요약 내용이 들어갑니다. 동해물과 백두산이 마르고 닳도록 하느님이 보우하사 우리나라만세 무궁화 삼천리 화려강산...</p>
                <p class="card-text comment">여기에 코멘트가 들어갑니다</p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top"
                 src="https://a.cdn-hotels.com/gdcs/production40/d811/5e89ad90-8f10-11e8-b6b0-0242ac110007.jpg"
                 alt="Card image cap">
            <div class="card-body">
                <a href="http://naver.com/" class="card-title">여기 기사 제목이 들어가죠</a>
                <p class="card-text">기사의 요약 내용이 들어갑니다. 동해물과 백두산이 마르고 닳도록 하느님이 보우하사 우리나라만세 무궁화 삼천리 화려강산...</p>
                <p class="card-text comment">여기에 코멘트가 들어갑니다</p>
            </div>
        </div>
        <div class="card">
            <img class="card-img-top"
                 src="https://a.cdn-hotels.com/gdcs/production40/d811/5e89ad90-8f10-11e8-b6b0-0242ac110007.jpg"
                 alt="Card image cap">
            <div class="card-body">
                <a href="http://naver.com/" class="card-title">여기 기사 제목이 들어가죠</a>
                <p class="card-text">기사의 요약 내용이 들어갑니다. 동해물과 백두산이 마르고 닳도록 하느님이 보우하사 우리나라만세 무궁화 삼천리 화려강산...</p>
                <p class="card-text comment">여기에 코멘트가 들어갑니다</p>
            </div>
        </div>
    </div>
</div>
</body>

</html>

<style></style> 밑에
<script></script>를 만든다
스타일 안에 function hey() { alert('안녕!!')}입력
jumbotron 안에 <a onclick="hey()"></a> 입력
크롬페이지 오른쪽 마우스 검사 console 들어감 hey()들어가면 안녕!!이 뜬다