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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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All packages are different, so refer to their docs for how they work.

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HTML 

              
                <html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  
  <script type='text/javascript' src='//code.jquery.com/jquery-1.9.1.js'></script>
  
  
  
  
  <link rel="stylesheet" type="text/css" href="/css/result-light.css">
  
    
      <link rel="stylesheet" type="text/css" href="https://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.css">
    
  
    
      <script type='text/javascript' src="https://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.js"></script>
    
  

</head>
<body>
  <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<div data-role="page">
    <div data-role="header" data-position="fixed" data-tap-toggle="false"> <a href="#" class="ui-btn ui-btn-b ui-btn-icon-right ui-icon-bars panel">Panel</a>

         <h1>Header</h1>
 <a href="#about" data-rel="popup" class="ui-btn ui-btn-icon-left ui-icon-info">Home</a>

    </div>
    <div role="main" class="ui-content"> <a href="#" class="ui-btn ui-btn-b ui-btn-icon-left ui-icon-info ui-corner-all" id="foo">Click here</a>

        <div class="ui-body ui-body-a ui-corner-all">
            
<h3>Heading</h3>

            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse accumsan blandit fermentum. Pellentesque cursus mauris purus, auctor commodo mi ullamcorper nec.</p>
        </div>
        <form>
            <div data-role="rangeslider">
                <label for="range-1a">Rangeslider:</label>
                <input type="range" name="range-1a" id="range-1a" min="0" max="100" value="40" />
                <label for="range-1b">Rangeslider:</label>
                <input type="range" name="range-1b" id="range-1b" min="0" max="100" value="80" />
            </div>
        </form>
    </div>
    <div data-role="footer" data-position="fixed" data-tap-toggle="false">
         <h1>Footer</h1>

    </div>
</div>
<!-- External Panel -->
<!-- / -->
</body>
  
</body>


</html>
!

CSS 

              
                .blur-filter {
    -webkit-filter: blur(2px);
    -moz-filter: blur(2px);
    -o-filter: blur(2px);
    -ms-filter: blur(2px);
    filter: blur(2px);
}
!

JS 

              
                $(document).on("pagecreate", function () {
    $("#foo").on("click", function () {
        // close button
        var closeBtn = $('<a href="#" data-rel="back" class="ui-btn-right ui-btn ui-btn-b ui-corner-all ui-btn-icon-notext ui-icon-delete ui-shadow">Close</a>');

        // text you get from Ajax
        var content = "<p>Lorem ipsum dolor sit amet, consectetur adipiscing. Morbi convallis sem et dui sollicitudin tincidunt.</p>";

        // Popup body - set width is optional - append button and Ajax msg
        var popup = $("<div/>", {
            "data-role": "popup"
        }).css({
            width: $(window).width() / 2.5 + "px",
            padding: 5 + "px"
        }).append(closeBtn).append(content);

        // Append it to active page
        $.mobile.pageContainer.append(popup);

        // Create it and add listener to delete it once it's closed
        // open it
        $("[data-role=popup]").popup({
            dismissible: false,
            history: false,
            theme: "b",
            /* or a */
            positionTo: "window",
            overlayTheme: "b",
            /* "b" is recommended for overlay */
            transition: "pop",
            beforeposition: function () {
                $.mobile.pageContainer.pagecontainer("getActivePage")
                    .addClass("blur-filter");
            },
            afterclose: function () {
                $(this).remove();
                $(".blur-filter").removeClass("blur-filter");
            },
            afteropen: function () {
                /* do something */
            }
        }).popup("open");
    });
});
!
999px

Console