Maison >interface Web >js tutoriel >Alerte vs alerte personnalisée en code HTML, CSS et Javascript
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Custom Alert Box</title> <link rel="stylesheet" href="style.css"> </head> <body> <div class="button-container"> <!-- Button to Trigger Default Alert --> <button class="btn default-alert-btn">Default Alert</button> <!-- Button to Trigger Custom Alert --> <button class="btn custom-alert-btn">Custom Alert</button> </div> <!-- Custom Alert Box --> <div class="custom-alert" id="customAlert"> <h1>Warning</h1> <span class="alert-text">This is a custom alert with a close option and animated border!</span> <button class="close-btn">×</button> </div> <script src="script.js"></script> </body> </html>
/* Reset */ * { box-sizing: border-box; } body { margin: 0; display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #1a1a1a; font-family: Arial, sans-serif; color: #fff; } /* Button Styling */ .button-container { display: flex; gap: 20px; } .btn { padding: 10px 20px; font-size: 16px; border: none; border-radius: 5px; cursor: pointer; transition: transform 0.2s; } .default-alert-btn { background-color: #4285f4; color: white; } .custom-alert-btn { background-color: #ff5722; color: white; } .btn:hover { transform: scale(1.05); } .custom-alert { position: fixed; top: 50px; /* left: 50%; */ width: 400px; padding: 5px; background-color: #333; color: #fff; border-radius: 10px; display: none; opacity: 0; transform: translateX(-50%); animation: fadeIn 0.5s forwards; /* Animated border effect */ border: 1px solid transparent; border-radius: 10px; background-image: linear-gradient(#333, #333), linear-gradient(45deg, #ff5722, #4285f4, #0f9d58, #f4b400); background-origin: border-box; background-clip: content-box, border-box; box-shadow: 0px 0px 2px rgba(255, 255, 255, 0.1); } /* Multicolored border animation */ @keyframes borderAnimation { 0% { background-position: 0% 50%; } 100% { background-position: 100% 50%; } } .custom-alert { animation: fadeIn 0.5s forwards, borderAnimation 3s linear infinite; background-size: 200% 200%; } /* Fade-in animation */ @keyframes fadeIn { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } } .alert-text { display: inline; } .close-btn { position: absolute; top: 4px; right: 4px; background: none; border: none; color: #fff; font-size: 30px; cursor: pointer; line-height: 1; transition: color 0.2s; } .close-btn:hover { color: #ff5722; }
// Buttons const defaultAlertBtn = document.querySelector('.default-alert-btn'); const customAlertBtn = document.querySelector('.custom-alert-btn'); const customAlert = document.getElementById('customAlert'); const closeBtn = document.querySelector('.close-btn'); // Show Default Alert defaultAlertBtn.addEventListener('click', () => { alert("This is the default alert."); }); // Show Custom Alert customAlertBtn.addEventListener('click', () => { customAlert.style.display = 'block'; setTimeout(() => { customAlert.style.opacity = '1'; }, 10); // Delay for CSS fade-in effect }); // Close Custom Alert closeBtn.addEventListener('click', () => { customAlert.style.opacity = '0'; setTimeout(() => { customAlert.style.display = 'none'; }, 500); // Delay for CSS fade-out effect });
Ce qui précède est le contenu détaillé de. pour plus d'informations, suivez d'autres articles connexes sur le site Web de PHP en chinois!