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[자바스크립트] 버튼누러서 사진 쫙 3*3 배치되는거

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by esoesmio 2023. 5. 23. 20:32

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<!DOCTYPE html>
<html lang="en">
<!--//배치 누르면 사진들 배치되는거-->
<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>배너 배치하기</title>
    <style>
        #btnStart {
            padding: 5px;
            margin-bottom: 5px;
        }
        .image-container {
            position: relative;
        }
        .image-container img {
            position: absolute;
            left: 0;
            top: 0;
            width: 120px;
        }
    </style>
</head>
<body>
    <button type="button" id="btnStart" >배치 시작하기</button>
    <div class="image-container">
        <img src="banners/1.png" alt="배너" class="banner">
        <img src="banners/2.png" alt="배너" class="banner">
        <img src="banners/3.png" alt="배너" class="banner">
        <img src="banners/4.png" alt="배너" class="banner">
        <img src="banners/5.png" alt="배너" class="banner">
        <img src="banners/6.png" alt="배너" class="banner">
        <img src="banners/7.png" alt="배너" class="banner">
        <img src="banners/8.png" alt="배너" class="banner">
    </div>
    <script>
        const btn = document.getElementById("btnStart");
        //btnStart 버튼 클릭시 동작
        btn.addEventListener('click', function() {
            const images = document.getElementsByClassName("banner");
            for(let i = 0; i < images.length; i++) {
//200씩 증가
                let left = ((i%3)+1)*200;
                let top = Math.floor(i/3)*200;
                images[i].style.left = left + 'px';
                images[i].style.top = top + 'px';
            }
        });
    </script>
</body>
</html>

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