Magnifiing effect over a image with mouse hover with HTML/CSS

Is it posibble to achieve this effect just with html and css? In the example image you can see a magnified rounded area (from a higher resolution source picture) where the mouse is hovering. It doesn't to be rounded area or to have borders.

example of desired Magnifiing effect over a image with mouse hover with HTML/CSS

In this site example you can see a good example (but it uses jquery and i don't know where to put this code in my web page)

can anyone here give me a clue how to start coding this? (in case that is was doable). Many thanks!

To use the second example is simple Only copy the html in your html page, the css in your css page and the jquery code in your html page like this

<script type="text/javascript">$(document).ready(function(){

var native_width = 0;
var native_height = 0;

//Now the mousemove function
$(".magnify").mousemove(function(e){
    //When the user hovers on the image, the script will first calculate
    //the native dimensions if they don't exist. Only after the native dimensions
    //are available, the script will show the zoomed version.
    if(!native_width && !native_height)
    {
        //This will create a new image object with the same image as that in .small
        //We cannot directly get the dimensions from .small because of the 
        //width specified to 200px in the html. To get the actual dimensions we have
        //created this image object.
        var image_object = new Image();
        image_object.src = $(".small").attr("src");

        //This code is wrapped in the .load function which is important.
        //width and height of the object would return 0 if accessed before 
        //the image gets loaded.
        native_width = image_object.width;
        native_height = image_object.height;
    }
    else
    {
        //x/y coordinates of the mouse
        //This is the position of .magnify with respect to the document.
        var magnify_offset = $(this).offset();
        //We will deduct the positions of .magnify from the mouse positions with
        //respect to the document to get the mouse positions with respect to the 
        //container(.magnify)
        var mx = e.pageX - magnify_offset.left;
        var my = e.pageY - magnify_offset.top;

        //Finally the code to fade out the glass if the mouse is outside the container
        if(mx < $(this).width() && my < $(this).height() && mx > 0 && my > 0)
        {
            $(".large").fadeIn(100);
        }
        else
        {
            $(".large").fadeOut(100);
        }
        if($(".large").is(":visible"))
        {
            //The background position of .large will be changed according to the position
            //of the mouse over the .small image. So we will get the ratio of the pixel
            //under the mouse pointer with respect to the image and use that to position the 
            //large image inside the magnifying glass
            var rx = Math.round(mx/$(".small").width()*native_width - $(".large").width()/2)*-1;
            var ry = Math.round(my/$(".small").height()*native_height - $(".large").height()/2)*-1;
            var bgp = rx + "px " + ry + "px";

            //Time to move the magnifying glass with the mouse
            var px = mx - $(".large").width()/2;
            var py = my - $(".large").height()/2;
            //Now the glass moves with the mouse
            //The logic is to deduct half of the glass's width and height from the 
            //mouse coordinates to place it with its center at the mouse coordinates

            //If you hover on the image now, you should see the magnifying glass in action
            $(".large").css({left: px, top: py, backgroundPosition: bgp});
        }
    }
})

}

Use this code between and in your html page

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>