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프론트엔드 스쿨 교안(1기)/
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CSS/
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009 여백

<!DOCTYPE html>
<html>
<head>
    <title>Document</title>   
    <style>
        h1{
            border: 1px solid black;
            padding: 2px 10px 20px 40px;
            margin:20px 
        }        
    </style> 
</head>
<body>
    <h1>hello world</h1>
</body>
</html>