First_project/model.html at main · etonsamuel/First_project · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Box Model</title>

    <style>

        body{
            background-attachment: fixed;
            height: 200vh;
        }

        *{
            margin: 0;
            box-sizing: border-box;
        }

        h1{
            text-align: center;
            margin: 20px;
            position: relative;
        }


        .container{
            width: 200px;
            height: 200px;
            background-color: red;
            border: 5px solid black;
            padding: 20px;
            margin: 20px;
            display: block;
            /* display: none; */
            /* visibility: hidden; */
            /* opacity: 1; */
            /* position: relative;
            top: 50px;
            left: 50px;
            right: 100px;
            bottom: 200000px; */
            position: sticky;
            top: 0px;
            /* left: 0px; */


        }

        @media screen and (max-width:750px){
            .container{
                display: block;
            }
        }


    </style>

</head>
<body>
    <h1>Absolute positioning</h1>
    <div class="container">

        <h1>welcome to display</h1>
    </div>


</body>
</html>