<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" href="./index.css"> <title>Document</title> </head> <body> <!-- モーダルを開くボタン --> <button id="modalBtn">モーダルを開く</button> <!-- モーダル本体。デフォルトでは非表示にしている --> <div id="myModal" class="modal"> <div class="modal-content"> <span class="close">✖︎</span> <p
![Javascriptで簡易的にモーダルを実装してみる - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/13e8f3241812498ebc7fe3f3b948bf5f5ca4f123/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9SmF2YXNjcmlwdCVFMyU4MSVBNyVFNyVCMCVBMSVFNiU5OCU5MyVFNyU5QSU4NCVFMyU4MSVBQiVFMyU4MyVBMiVFMyU4MyVCQyVFMyU4MyU4MCVFMyU4MyVBQiVFMyU4MiU5MiVFNSVBRSU5RiVFOCVBMyU4NSVFMyU4MSU5NyVFMyU4MSVBNiVFMyU4MSVCRiVFMyU4MiU4QiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZ0eHQtY29sb3I9JTIzMUUyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnM9YTBmMzllMTAxODQ1NzUyOTBhNzkwYzU3YWVhNTcwMDY%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBrZWlzd2UmdHh0LWNvbG9yPSUyMzFFMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTEzNGNkZjdlYmQ5OWNlNTVhZGFiOTg1YTI5NWJjOTcz%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3D0c5809b84b9cb0b2847828fdad498070)