网站弹出促销海报动画效果代码（带关闭按钮）

在促销海报刚弹出时会抖动一两下

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>金币促销活动</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
        }

        #promo-popup {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: #fff;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
            padding: 20px;
            border-radius: 10px;
            z-index: 999;
        }

        #promo-popup img {
            width: 100%;
            height: auto;
            border-radius: 5px;
        }

        #close-btn {
            position: absolute;
            top: 10px;
            right: 10px;
            cursor: pointer;
        }

        /* 初始状态不抖动，点击关闭按钮后再添加抖动效果 */
        @keyframes shake {
            0%, 100% {
                transform: translate(-50%, -50%);
            }
            10%, 30%, 50%, 70%, 90% {
                transform: translate(-50%, -50%) rotate(-5deg);
            }
            20%, 40%, 60%, 80% {
                transform: translate(-50%, -50%) rotate(5deg);
            }
        }

        /* 添加抖动效果的class */
        .shake {
            animation: shake 0.5s ease;
        }
    </style>
</head>
<body>

<div id="promo-popup">
    <div id="close-btn" onclick="closePromoPopup()">X</div>
    <img src="path/to/promo-image.jpg" alt="促销活动图片">
</div>

<script>
    document.addEventListener("DOMContentLoaded", function () {
        // 显示促销活动弹窗，并在一定时间后添加抖动效果
        setTimeout(function () {
            var promoPopup = document.getElementById("promo-popup");
            promoPopup.style.display = "block";
            promoPopup.classList.add("shake");
        }, 3000); // 3秒后显示，你可以根据需要调整时间

        // 关闭促销活动弹窗
        window.closePromoPopup = function () {
            var promoPopup = document.getElementById("promo-popup");
            promoPopup.style.display = "none";
            promoPopup.classList.remove("shake"); // 移除抖动效果
        };
    });
</script>

</body>
</html>

 

posted @ 2024-02-01 15:51  夏威夷8080  阅读(9)  评论(0)  编辑  收藏  举报