Rotating banner simplest way with jquery and css

Rotating banner appeals most of the client and it's quite time consuming for developers to judge which library they need to use and do modification in them according to their requirements. In this article we are going to create the simplest and fully working rotating banner by writing just two three css classes and 4 5 lines of JavaScript code. Big question is that whether it will work with responsive pages, yes we will write two line of css class which will achieve it.

First we will add our html, I promise it will be simplest html even the biggner will write it in a minute

<div id="slider" >
    <div>
        <img src="http://www.bigfishdiary.com/images/1.jpg" />
    </div>
    <div>
        <img src="http://www.bigfishdiary.com/images/2.jpg" />
    </div>
    <div>
        <img src="http://www.bigfishdiary.com/images/3.jpg" />
    </div>
    <div>
        <img src="http://www.bigfishdiary.com/images/4.jpg" />
    </div>
</div>

I added all the image path from a live website, we can also use from our application folder, that is easy we all know that how to use an image from application's some folder.

Do you see any complicated code, nothing, simple html only with the very first (parent) div have a class slideshow, that's it. This code is not only to slide the image but the div, so whatever you will put inside these div will slide. so you can put the image or any rich text or whatever you want.

We need some css to manage the show/hide and styling the content, so a tiny peace of it is here

#slider { 
    margin: 0px auto; 
    position: relative; 
    width: 100%; 
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

img {
    height: auto;
    max-width: 100%!important;
}

#slider > div { 
    position: absolute;   
}

It's all very simple css, which we use in our day by day life, there is nothing which want me to explain, if you have any question let me know.

And Finally we need some script which will do the rotation of our banner. Can you guess how many lines of code you need to rotate it, just 5 lines and here is it

<script>
    $("#slider > div:gt(0)").hide();
    $("#slider").height($("#slider > div > img").height());
    setInterval(function () {
        $('#slider > div:first')
          .fadeOut(1000)
          .next()
          .fadeIn(1000)
          .end()
          .appendTo('#slider');
    }, 3000);
</script>

Do you think it is more than 5 line, then pass all the parameter in one line and then it will not go more than 5 lines. In this code I am trying to set the height of the slider with the height of image, yes it is becuse the image position will be absolute, so the other content bellow that image will go inside the image, that's why I try to set the height of slider.

$("#slider").height($("#slider > div > img").height());

If you want to write the JavaScript code on the page to test then here is the complete MVC page code

@{
    ViewBag.Title = "Home Page";
}

<div id="slider">
    <div>
        <img src="http://www.bigfishdiary.com/images/1.jpg" />
    </div>
    <div>
        <img src="http://www.bigfishdiary.com/images/2.jpg" />
    </div>
    <div>
        <img src="http://www.bigfishdiary.com/images/3.jpg" />
    </div>
    <div>
        <img src="http://www.bigfishdiary.com/images/4.jpg" />
    </div>
</div>

@section scripts{
<script>
    $("#slider > div:gt(0)").hide();
    $("#slider").height($("#slider > div > img").height());
    setInterval(function () {
        $('#slider > div:first')
          .fadeOut(1000)
          .next()
          .fadeIn(1000)
          .end()
          .appendTo('#slider');
    }, 3000);
</script>
}

Run the code and try to resize the page and refresh, we will see the images are adjusting themselves according to the page size, so it can work on every device even on mobile. And it is just because of our img class, since it is and element tag so will be applied for all the images in our application.

See live demo here

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