106 lines
2.3 KiB
HTML
106 lines
2.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Popup with Arrow</title>
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<style>
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body {
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font-family: Arial, sans-serif;
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padding: 50px;
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}
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/* 触发按钮 */
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.btn {
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padding: 10px 20px;
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background-color: #3498db;
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color: white;
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border: none;
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cursor: pointer;
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border-radius: 4px;
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}
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/* Popup 基础样式 */
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.popup {
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position: absolute;
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padding: 10px 15px;
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background-color: #333;
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color: #fff;
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border-radius: 6px;
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box-shadow: 0 4px 12px rgba(0,0,0,0.3);
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display: none;
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z-index: 100;
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max-width: 200px;
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text-align: center;
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}
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/* 箭头公共样式 */
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.popup::after {
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content: '';
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position: absolute;
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width: 0;
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height: 0;
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border-style: solid;
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}
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/* 箭头方向 */
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.popup.top::after {
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bottom: -8px;
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left: 50%;
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transform: translateX(-50%);
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border-width: 8px 8px 0 8px;
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border-color: #333 transparent transparent transparent;
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}
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.popup.bottom::after {
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top: -8px;
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left: 50%;
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transform: translateX(-50%);
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border-width: 0 8px 8px 8px;
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border-color: transparent transparent #333 transparent;
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}
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.popup.left::after {
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top: 50%;
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right: -8px;
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transform: translateY(-50%);
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border-width: 8px 0 8px 8px;
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border-color: transparent transparent transparent #333;
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}
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.popup.right::after {
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top: 50%;
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left: -8px;
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transform: translateY(-50%);
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border-width: 8px 8px 8px 0;
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border-color: transparent #333 transparent transparent;
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}
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</style>
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</head>
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<body>
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<button class="btn" id="btn">Hover me</button>
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<div class="popup top" id="popup">这是一个带箭头的 Popup!</div>
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<script>
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const btn = document.getElementById('btn');
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const popup = document.getElementById('popup');
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// 鼠标悬停显示
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btn.addEventListener('mouseenter', () => {
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const rect = btn.getBoundingClientRect();
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popup.style.display = 'block';
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// 设置 Popup 位置（示例：顶部）
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popup.style.left = rect.left + rect.width / 2 - popup.offsetWidth / 2 + 'px';
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popup.style.top = rect.top - popup.offsetHeight - 10 + 'px';
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});
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btn.addEventListener('mouseleave', () => {
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popup.style.display = 'none';
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});
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</script>
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</body>
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</html>
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