<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<style>
    *{
        margin: 0;
        padding: 0;
    }
    .box div{
        width: 200px;
        height: 200px;
        background-color: aquamarine;
        margin-right: 30px;
        display: inline-block;
        text-align: center;
        font-size: 30px;
        line-height: 200px;
    }
    .two{
        position: relative;
        left: 20px;
        top: 20px;
    }
    .box .three{
        position: absolute;
        left: 100px;
        background-color:rgb(194, 173, 176);
        z-index: 77;
        opacity: .6;
    }
    .box2{
        height: 600px;
        position: relative;
    }
    .a{
        position: sticky;
        height: 100px;
        width: 100px;
        top: 100px;
        background-color: rgb(182, 189, 186);
        margin-bottom: 100px;
    }
    .b{
        position: sticky;
        height: 100px;
        width: 100px;
        top: 50px;
        opacity: .8;
        background-color: rgb(118, 219, 175);
    }
    .box3{
        height: 1200px;
        background-color: aquamarine;
    }
</style>
<body>
    <div class="box">
        <div class="one">one</div>
        <div class="two">two</div>
        <div class="three">three</div>
        <div class="four">four</div>
    </div>
    <div class="box2">
        <div class="a">absol</div>
        <div class="b"></div>
    </div>
    <div class="box3"></div>
</body>
</html>