代码

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title></title>
    <style>


      
    </style>
</head>

<body>

    <div style="display: flex;">
        <div class="box blink1 "></div>
        <div class="box blink2 "></div>
        <div class="box blink3 "></div>
    </div>
    <div class="box-2">
        <div class="box-content"></div>
    </div>
    <style>
        .box-2{
            position: relative;
            width: 800px;
            height: 50px;
        }
        .box-content{
            position: absolute;
            left: 0;
            width: 50px;
            height: 50px;
            animation: 5s moveRightLeft 0s infinite;
            background-color: burlywood;

        }
        @keyframes moveRightLeft{
            0% {
                left:0px;
            }
            50% {
                left: 750px;
            }
            100%{
                left: 0px;
            }
        }
        .box{
            width: 150px;
            height: 35px;
            background-color: blueviolet;
            margin-left: 5px;
        }
        .blink1 {
            animation: 3s opacity2 0s infinite;
 
        }
        .blink2 {
            animation: 3s opacity2 0s infinite;
            animation-delay: 1s;
 
        }
        .blink3 {
            animation: 3s opacity2 0s infinite;
            animation-delay: 2s;
 
        }
        @keyframes opacity2 {
            0% {
                opacity: 0
            }
   
            100% {
                opacity: 1;
            }    
 
      
        }
    </style>
</body>

</html>

　　

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