DVD循环碰撞（公告功能动画）DVD循环碰撞（公告功能动画）DVD循环碰撞（公告功能动画）DVD循环碰撞（公告功能动画）

<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>DVD 无信号效果</title>
    <style>
        body,
        html {
            width: 100%;
            height: 100%;
            margin: 0; /* 去除默认 margin */
            background-color: #fff; /* 设置背景颜色为黑色 */
        }

        .DVD_box {
            z-index: 1111;
            position: relative;
            width: 500px;
            height: 300px;
            background-color: #cbc7c7;
            border: 3px solid #659a03;
            /* animation: horizontal 6s infinite -2.8s linear alternate,
                       vertical 8s infinite -4.2s linear alternate;
                        animation-composition: accumulate; */
            animation: horizontal 6s infinite 0s linear alternate,
                       vertical 8s infinite 0s linear alternate;
                        animation-composition: accumulate;
        }
        /* 停止动画 */
        .DVD_box:hover {
            animation-play-state: paused;
        }

        @keyframes horizontal {
            from {
                transform: translateX(0);
            }

            to {
                transform: translateX(calc(100vw - 100%));
            }
        }

        @keyframes vertical {
            from {
                transform: translateY(0);
            }

            to {
                transform: translateY(calc(100vh - 100%));
            }
        }

        .DVD_box{
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .title{
            color: #659a03;
            font-size: 20px;
            font-weight: 600;
        }
    </style>
</head>
<body>
    <!-- 可根据 v-if 判断 用户是否有工告消息，进行显示 -->
    <div class="DVD_box">
        <div class="title">请各位用户及时点击查看公告详情</div>
    </div>
</body>
</html>