CSS to make div sticky within container

Lets create a div sticky inside container only with the help of css, thought to css make container sticky, with the help of position sticky inside a container we can able to achive that and that is very smooth, css make div sticky on scroll will be very smooth we can easliy make any element sticky inside container

the below is the simple sticky code you can diractly apply

When we apply this code, then the block will sticky within the parent container so when we scroll up and down it will float with the parent container and if the parent container will appear on screen the css will make the block stick to that paren container .

div.sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  background-color: yellow;
  padding: 50px;
  font-size: 20px;
}

An element with position: sticky; is positioned based on the user’s scroll position.

A sticky element toggles between relative and fixed, depending on the scroll position. It is positioned relative until a given offset position is met in the viewport – then it “sticks” in place (like position:fixed).

Note: Internet Explorer, Edge 15 and earlier versions do not support sticky positioning. Safari requires a -webkit- prefix (see example below). You must also specify at least one of top, right, bottom or left for sticky positioning to work.

you can also css make div stick to bottom

DEMO

HTML (The HTML length is to big bacause we nrrd to maintain scroll height)

 <div class="sticky-div">
        <header>
            <p>Header</p>
        </header>
        <section>banner</section>
        <main>
            <div class="sticky-div-box">
                <p>sticky div</p>
            </div>
            <div class="containent">

                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>

                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>
                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>

                <p>What is Lorem Ipsum?
                    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                    industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                    and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                    leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                    with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                    publishing software like Aldus PageMaker including versions of Lorem Ipsum.
                </p>

            </div>


        </main>
        <section class="bottom-text">
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
            <p>What is Lorem Ipsum?
                Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the
                industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type
                and scrambled it to make a type specimen book. It has survived not only five centuries, but also the
                leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s
                with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop
                publishing software like Aldus PageMaker including versions of Lorem Ipsum.
            </p>
        </section>
        <footer>Footer</footer>

    </div>
  

CSS

  <style>
        .sticky-div {
            width: 100%;
            height: 500px;
            overflow-x: scroll;
            font-size: 18px;
            font-family: Arial, Helvetica, sans-serif;
        }

        .sticky-div-box {
            position: sticky;
            width: 150px;
            height: 200px;
            background: #333333;
            color: #ffffff;
            text-align: center;
            float: right;
            top: 20%;
            margin-top: 50px;

        }

        .sticky-div header {
            height: 90px;
            width: 100%;
            display: flex;
            background: orange;
            justify-content: center;
            flex-direction: row;
            color: #ffffff;
            align-items: center;
        }

        .sticky-div footer {
            height: 90px;
            width: 100%;
            display: flex;
            background: black;
            display: flex;
            justify-content: center;
            flex-direction: row;
            color: #ffffff;
            align-items: center;
        }

        .sticky-div main {
            display: flex;
            flex-direction: row-reverse;

        }

        .sticky-div section {
            height: 400px;
            background: #000000;
            width: 100%;
            display: flex;
            text-align: center;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-size: 18px;
        }

        .containent {
            padding: 50px 0px;
            width: 70%;
            margin: 0 auto;
        }

        section.bottom-text {
            background: #ffffff;
            color: #333333;
            width: 80%;
            margin: 30px auto;
            display: table;
            flex-direction: column;
        }
    </style>