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</nav> <div class="container"> <h1>�?CSS动画生成�?/h1> <div class="layout"> <div class="card"> <div class="presets"> <div class="preset" onclick="applyPreset('bounce')">弹跳</div> <div class="preset" onclick="applyPreset('shake')">抖动</div> <div class="preset" onclick="applyPreset('pulse')">脉冲</div> <div class="preset" onclick="applyPreset('spin')">旋转</div> <div class="preset" onclick="applyPreset('fade')">淡入淡出</div> <div class="preset" onclick="applyPreset('slide')">滑动</div> <div class="preset" onclick="applyPreset('flip')">翻转</div> <div class="preset" onclick="applyPreset('swing')">摆动</div> </div> <div class="preview-area"> <div class="preview-box" id="preview"></div> </div> <div class="output" id="output"></div> <button class="btn" onclick="copyCSS()" aria-label="📋 复制CSS">📋 复制CSS</button> <button class="btn" onclick="toggleAnimation()" aria-label="⏯️ 播放/暂停"> ⏯️ 播放/暂停 </button> </div> <div class="card"> <div class="control-group"> <label for="input-----">动画名称</label> <input type="text" id="animationName" value="myAnimation" oninput="update()" aria-label="文本输入�? placeholder="请输入文本输入框" /> </div> <div class="row"> <div class="control-group"> <label for="input-----">持续时间</label> <input type="text" id="duration" value="1s" oninput="update()" aria-label="文本输入�? placeholder="请输入文本输入框" /> </div> <div class="control-group"> <label for="input---">延迟</label> <input type="text" id="delay" value="0s" oninput="update()" aria-label="文本输入�? placeholder="请输入文本输入框" /> </div> </div> <div class="row"> <div class="control-group"> <label>时间函数</label> <select id="timing" onchange="update()"> <option value="ease">ease</option> <option value="ease-in">ease-in</option> <option value="ease-out">ease-out</option> <option value="ease-in-out">ease-in-out</option> <option value="linear">linear</option> <option value="cubic-bezier(0.68, -0.55, 0.265, 1.55)">弹�?/option> </select> </div> <div class="control-group"> <label>循环次数</label> <select id="iteration" onchange="update()"> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="infinite" selected>无限</option> </select> </div> </div> <div class="row"> <div class="control-group"> <label>方向</label> <select id="direction" onchange="update()"> <option value="normal">normal</option> <option value="reverse">reverse</option> <option value="alternate">alternate</option> <option value="alternate-reverse">alternate-reverse</option> </select> </div> <div class="control-group"> <label>填充模式</label> <select id="fillMode" onchange="update()"> <option value="none">none</option> <option value="forwards">forwards</option> <option value="backwards">backwards</option> <option value="both">both</option> </select> </div> </div> <div class="keyframes"> <div style=" display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; " > <h3 style="font-size: 14px; color: #ff6b6b">关键�?/h3> <button class="btn btn-sm" onclick="addKeyframe()" aria-label="+ 添加">+ 添加</button> </div> <div id="keyframesList"></div> </div> </div> </div> </div> <script> let keyframes = [ { percent: 0, css: "transform: translateY(0);" }, { percent: 50, css: "transform: translateY(-20px);" }, { percent: 100, css: "transform: translateY(0);" } ]; let isPlaying = true; const presets = { bounce: [ { percent: 0, css: "transform: translateY(0);" }, { percent: 50, css: "transform: translateY(-30px);" }, { percent: 100, css: "transform: translateY(0);" } ], shake: [ { percent: 0, css: "transform: translateX(0);" }, { percent: 25, css: "transform: translateX(-10px);" }, { percent: 50, css: "transform: translateX(10px);" }, { percent: 75, css: "transform: translateX(-10px);" }, { percent: 100, css: "transform: translateX(0);" } ], pulse: [ { percent: 0, css: "transform: scale(1);" }, { percent: 50, css: "transform: scale(1.1);" }, { percent: 100, css: "transform: scale(1);" } ], spin: [ { percent: 0, css: "transform: rotate(0deg);" }, { percent: 100, css: "transform: rotate(360deg);" } ], fade: [ { percent: 0, css: "opacity: 1;" }, { percent: 50, css: "opacity: 0.3;" }, { percent: 100, css: "opacity: 1;" } ], slide: [ { percent: 0, css: "transform: translateX(-50px); opacity: 0;" }, { percent: 100, css: "transform: translateX(0); opacity: 1;" } ], flip: [ { percent: 0, css: "transform: perspective(400px) rotateY(0);" }, { percent: 100, css: "transform: perspective(400px) rotateY(360deg);" } ], swing: [ { percent: 0, css: "transform: rotate(0deg);" }, { percent: 20, css: "transform: rotate(15deg);" }, { percent: 40, css: "transform: rotate(-10deg);" }, { percent: 60, css: "transform: rotate(5deg);" }, { percent: 80, css: "transform: rotate(-5deg);" }, { percent: 100, css: "transform: rotate(0deg);" } ] }; function applyPreset(name) { keyframes = JSON.parse(JSON.stringify(presets[name])); renderKeyframes(); update(); } function renderKeyframes() { const container = document.getElementById("keyframesList"); container.innerHTML = keyframes .map( (kf, i) => ` <div class="keyframe"> <div class="keyframe-header"> <span><input type="number" value="${kf.percent}" min="0" max="100" onchange="updateKeyframe(${i}, 'percent', this.value)" aria-label="数字输入�? placeholder="请输入数字输入框">%</span> ${keyframes.length > 2 ? `<button class="btn btn-sm" style="background:#e74c3c" onclick="removeKeyframe(${i})" aria-label="×">×</button>` : ""} </div> <textarea oninput="updateKeyframe(${i}, 'css', this.value)">${kf.css}</textarea> </div> ` ) .join(""); } function updateKeyframe(index, prop, value) { keyframes[index][prop] = prop === "percent" ? parseInt(value) : value; update(); } function addKeyframe() { const lastPercent = keyframes[keyframes.length - 1].percent; keyframes.push({ percent: Math.min(lastPercent + 25, 100), css: "transform: none;" }); keyframes.sort((a, b) => a.percent - b.percent); renderKeyframes(); update(); } function removeKeyframe(index) { if (keyframes.length > 2) { keyframes.splice(index, 1); renderKeyframes(); update(); } } function update() { const name = document.getElementById("animationName").value; const duration = document.getElementById("duration").value; const delay = document.getElementById("delay").value; const timing = document.getElementById("timing").value; const iteration = document.getElementById("iteration").value; const direction = document.getElementById("direction").value; const fillMode = document.getElementById("fillMode").value; const keyframeCSS = keyframes.map((kf) => ` ${kf.percent}% { ${kf.css} }`).join("\n"); const css = `@keyframes ${name} {\n${keyframeCSS}\n}\n\n.element {\n animation: ${name} ${duration} ${timing} ${delay} ${iteration} ${direction} ${fillMode};\n}`; document.getElementById("output").textContent = css; // Apply to preview const style = document.createElement("style"); style.textContent = `@keyframes ${name} {\n${keyframeCSS}\n}`; document.head.querySelectorAll("style[data-animation]").forEach((s) => s.remove()); style.dataset.animation = "true"; document.head.appendChild(style); const preview = document.getElementById("preview"); preview.style.animation = isPlaying ? `${name} ${duration} ${timing} ${delay} ${iteration} ${direction} ${fillMode}` : "none"; } function toggleAnimation() { isPlaying = !isPlaying; update(); } function copyCSS() { navigator.clipboard.writeText(document.getElementById("output").textContent); alert("已复制到剪贴�?"); } renderKeyframes(); update(); // Theme toggle function toggleTheme() { const html = document.documentElement; const currentTheme = html.getAttribute("data-theme"); const newTheme = currentTheme === "light" ? "dark" : "light"; html.setAttribute("data-theme", newTheme); document.getElementById("theme-icon").textContent = newTheme === "light" ? "☀�? : "🌙"; localStorage.setItem("theme", newTheme); } // Load saved theme const savedTheme = localStorage.getItem("theme") || "dark"; if (savedTheme === "light") { document.documentElement.setAttribute("data-theme", "light"); document.getElementById("theme-icon").textContent = "☀�?; } </script> </body> </html>