引子
HTML
<!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="style.css" /> <title>Animated Navigation</title> </head> <body> <nav class="active" id="nav"> <ul> <li><a href="#">Home</a></li> <li><a href="#">Works</a></li> <li><a href="#">About</a></li> <li><a href="#">Contact</a></li> </ul> <button class="icon" id="toggle"> <div class="line line1"></div> <div class="line line2"></div> </button> </nav> <script src="script.js"></script> </body> </html>
JavaScript
const toggle = document.getElementById('toggle') const nav = document.getElementById('nav') toggle.addEventListener('click', () => nav.classList.toggle('active'))
CSS
@import url('https://fonts.googleapis.com/css?family=Muli&display=swap'); * { box-sizing: border-box; } body { background-color: #eafbff; background-image: linear-gradient( to bottom, #eafbff 0%, #eafbff 50%, #5290f9 50%, #5290f9 100% ); font-family: 'Muli', sans-serif; display: flex; align-items: center; justify-content: center; height: 100vh; margin: 0; } nav { background-color: #fff; padding: 20px; width: 80px; display: flex; align-items: center; justify-content: center; border-radius: 3px; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3); transition: width 0.6s linear; overflow-x: hidden; } nav.active { width: 350px; } nav ul { display: flex; list-style-type: none; padding: 0; margin: 0; width: 0; transition: width 0.6s linear; } nav.active ul { width: 100%; } nav ul li { transform: rotateY(0deg); opacity: 0; transition: transform 0.6s linear, opacity 0.6s linear; } nav.active ul li { opacity: 1; transform: rotateY(360deg); } nav ul a { position: relative; color: #000; text-decoration: none; margin: 0 10px; } .icon { background-color: #fff; border: 0; cursor: pointer; padding: 0; position: relative; height: 30px; width: 30px; } .icon:focus { outline: 0; } .icon .line { background-color: #5290f9; height: 2px; width: 20px; position: absolute; top: 10px; left: 5px; transition: transform 0.6s linear; } .icon .line2 { top: auto; bottom: 10px; } nav.active .icon .line1 { transform: rotate(-765deg) translateY(5.5px); } nav.active .icon .line2 { transform: rotate(765deg) translateY(-5.5px); }
