Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using it's URL and the proper URL extention.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

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.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <body>
  <h1>Sliding Navigation</h1>
  <nav id="navigation">
    <ul>
        <li class="about"><a href="#">About</a>
            <ul>
                <li><a href="#">History</a></li>
                <li><a href="#">Media</a>
                    <ul>
                        <li><a href="#">Brochures</a></li>
                        <li><a href="#">Videos</a></li>
                        <li><a href="#">Downloads</a></li>
                    </ul>
                </li>
                <li><a href="#">Staff</a></li>
            </ul>
        </li>
        <li class="products"><a href="#">Products</a>
            <ul>
                <li><a href="#">Widgets</a></li>
                <li><a href="#">Contraptions</a></li>
                <li><a href="#">Gizmos</a></li>
            </ul>
        </li>

        <li class="resources"><a href="#">Resources</a>
            <ul>
                <li><a href="#">Manuals</a></li>
                <li><a href="#">Knowledgebase</a></li>
                <li><a href="#">Support</a></li>
            </ul>
        </li>
        <li class="contact"><a href="#">Contact</a></li>
    </ul>
</nav>
</body>
              
            
!

CSS

              
                html { height:100% }

body {
  font-family:"Helvetica Neue",sans-serif;
  /* background image from http://photosof.org/ */
  background:url(https://s.cdpn.io/44759/dark_blue_background-wide.jpg) no-repeat top center #343838;
  margin:0;
  padding:2em;
  text-align:center;
  height:100%
}

::selection {
  color:#fff;
  background:#00e2ff
}

h1 {
  color:#fff;
  text-shadow:2px 2px 5px rgba(0,0,0,.5);
  margin:1em 0;
  padding-bottom:.5em;
  font-size:1.75em;
  border-bottom:1px solid rgba(255,255,255,.2);
  display:inline-block;
  position:relative;
}

h1:after {
  content:"";
  position:absolute;
  bottom:-21px;
  left:50%;
  border:10px solid transparent;
  border-top-color:rgba(255,255,255,.2);
}

nav {
  margin:1em auto;
  position:relative;
  max-width:480px;
  text-align:left;
  background: #131515;
}

nav ul {
  padding:0;
  margin:0;
  list-style:none;
  background:#343838;
  transition:all .3s ease-in-out;
  -o-transition:all .3s ease-in-out;
  -moz-transition:all .3s ease-in-out;
  -webkit-transition:all .3s ease-in-out
}

nav ul li:first-child {
  border-top:0
}

nav ul li {
  display:block;
  border-bottom:1px dotted #000
}

nav ul li:last-child {
  border-bottom-width:0
}

nav ul li a {
  display:block;
  padding:2em;
  white-space:nowrap;
  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(rgba(0,0,0,0.45)), to(rgba(0,0,0,.65)));
  background-image: -webkit-linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,.65));
  background-image: -moz-linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,.65));
  background-image: -o-linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,.65));
  background-image: linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,.65));
  color:#fff;
  font-weight:600;
  text-decoration:none;
  border-left:.5em solid
}

nav ul li a strong {
  float:right;
  font-size:.6em;
  margin-top:.25em
}

nav ul li a.slider-back {
  color:#00e2ff;
  background:rgba(0,0,0,.35);
  text-align:right
}

nav ul li a.slider-back strong {
  float:left
}

nav ul.slider-current {
  left:0;
  display:block
}

nav ul.slider-left { left:-100% }
nav ul.slider-right { left:100% }
nav ul li ul { left:200% }
nav ul li ul.slider-current { left:100% }
nav ul li ul.slider-left { left:0 }
nav ul li ul.slider-right { left:200% }

nav ul li.about a { border-left-color:rgba(0,226,255,.85) }
nav ul li.products a { border-left-color:rgba(0,226,255,.65) }
nav ul li.blog a { border-left-color:rgba(0,226,255,.45) }
nav ul li.resources a { border-left-color:rgba(0,226,255,.3) }
nav ul li.contact a { border-left-color:rgba(0,226,255,.125) }

nav ul li a:hover {
  background:rgba(0,0,0,.35);
  color:#fff;
  border-left-color:#00e2ff
}

@media(min-width: 600px) {
  body { 
    -webkit-box-shadow: inset 0 0 250px rgba(0,0,0,.85);
    -moz-box-shadow: inset 0 0 250px rgba(0,0,0,.85);
    box-shadow:inset 0 0 250px rgba(0,0,0,.85);  
  }
  nav { 
    -webkit-box-shadow: 2px 2px 20px rgba(0,0,0,.95);
    -moz-box-shadow: 2px 2px 20px rgba(0,0,0,.95);
    box-shadow:2px 2px 20px rgba(0,0,0,.95);
  }
}
              
            
!

JS

              
                /** 
slider
---------------------------------------------------------------------
Author: 		Lane Olson
Sources: 		jQuery Plugin Patterns:
					http://coding.smashingmagazine.com/2011/10/11/essential-jquery-plugin-patterns/
Download:     https://github.com/Lane/Slider/
Version:		  1.0
Description:	Displays nested lists of links as a sliding menu
---------------------------------------------------------------------
**/
;(function ($) {

    // initialize namespace if it doesn't exist
    if (!$.responsive) {
            $.responsive = {};
	};
    
	$.responsive.slider = function ( el, options ) {
		// To avoid scope issues, use 'base' instead of 'this'
		// to reference this class from internal events and functions.
		var base = this;

		// Access to jQuery and DOM versions of element
		base.$el = $(el);
		base.el = el;

		// Add a reverse reference to the DOM object
		base.$el.data( "responsive.slider" , base );
		
		var currentNav = $('ul:first', base.el);
		
		var transitionsSupported = false;
		var isCreated = false;
        var isAnimating = false;

		base.init = function () {
			base.options = $.extend({}, $.responsive.slider.defaultOptions, options);
			
			base.$el.bind("createslider", function() {
				base.create();
			});
			
			base.$el.bind("destroyslider", function() {
				base.destroy();
			});
			
			transitionsSupported = Modernizr.csstransitions;
			
			if(base.options.initPlugin)
				base.create();
		};
		
		// item - list item containing the sub menu
		base.goToNext = function(item) {
			var currUl = currentNav;
			var nextUl = item.siblings("ul:first");
			var divContainer = false;

            if(!isAnimating)
			{
                isAnimating = true;
                if(nextUl.length < 1)
                {
                    divContainer = item.siblings("div");
                    nextUl = $("ul:first", divContainer);
                }
                
                nextUl.prepend('<li><a class="'+base.options.classPrefix+'back'+'" href="#">'+base.options.backWording+' '+item.html()+'</a></li>');
                $('a.'+base.options.classPrefix+'back'+' strong', nextUl).html(base.options.prevArrow);

                if(!transitionsSupported)
                {
                    nextUl.css("left", nextUl.position().left+"px");
                    nextUl.animate({ left: "0" }, base.options.transitionTime, "swing", function()
                    {
                        base.switchClassesNext(currUl, nextUl);
                        isAnimating = false;
                    });
			    } else {
				    base.switchClassesNext(currUl, nextUl);
                    isAnimating = false;
			    }
			
			    currentNav = nextUl;
            }
		};
		
		base.goToParent = function() {
		
			var currUl = currentNav;
			var prevUl = currUl.parents("ul:first"); // get first parent <ul>
			var moveLeft; // value to animate left to
			
            if(!isAnimating) {
                isAnimating = true;
                if(!transitionsSupported) {
                    if(prevUl.position().left < 0)
                        moveLeft = "0";
                    else
                        moveLeft = "100%";
                        
                    prevUl.css("left", prevUl.position().left+"px");
                    prevUl.animate({ left: moveLeft }, base.options.transitionTime, "linear", function()
                    {
                        base.switchClassesPrevious(currUl, prevUl);
                        isAnimating = false;
                    });
			    } else {
				    base.switchClassesPrevious(currUl, prevUl);
                    isAnimating = false;
			    }
			currentNav = prevUl;
            }
			
		};
		
		
		base.switchClassesNext = function(current, next) {
			current.removeClass(base.options.classPrefix+'current');
			current.addClass(base.options.classPrefix+'left');
			next.addClass(base.options.classPrefix+'current');
			next.removeClass(base.options.classPrefix+'right');
			base.$el.height(next.height());
			next.css("left", "");
		};
		
		base.switchClassesPrevious = function(current, previous) {
			current.removeClass(base.options.classPrefix+'current');
			current.addClass(base.options.classPrefix+'right');
			previous.addClass(base.options.classPrefix+'current').css("left", "");
			previous.removeClass(base.options.classPrefix+'left').css("left", "");
			current.find("li:first").remove();
			base.$el.height(previous.height());
		};
		
		base.transitionSupport = function() {
      return true;
			var d = document.createElement("detect"),
				CSSprefix = "Webkit,Moz,O,ms,Khtml".split(","),
				All = ("transition " + CSSprefix.join("Transition,") + "Transition").split(",");
			for (var n = 0, np = All.length; n < np; n++) {
				if (d.style[All[n]] === "") {
					return true;
				}
			}

			return false;
		};
		
		base.create = function(){

			if(!isCreated) {
				base.$el.css('overflow', 'hidden');
				
				$('ul', base.el).css({ 
					'position': 'absolute', 
					'width': '100%', 
					'top': '0px' 
				});
				
				base.$el.find("ul:first").addClass(base.options.classPrefix+'current');
				
				base.$el.css({
					height: base.$el.find("ul:first").height()
				});
				
				$("li", base.el).each(function() {
					if($(this).children("ul").length > 0 || $(this).children('div').children('ul').length > 0)
					{
						$(this).children("ul","div").addClass(base.options.classPrefix+'right');
						$(this).children("a").append('<strong>'+base.options.moreArrow+'</strong>').addClass(base.options.classPrefix+'more');
					}
				});
			
				base.$el.on("click", "a."+base.options.classPrefix+'more', function() {
					base.goToNext($(this));
					return false;
				});
				
				base.$el.on("click", "a."+base.options.classPrefix+'back', function () {
					base.goToParent();
					return false;
				});
				
				isCreated = true;
			}
		};
		
		base.destroy = function() {
			base.$el.removeAttr('style');
			base.$el.off("click", "**");
			$('.'+base.options.classPrefix+'current', base.el).removeClass(base.options.classPrefix+'current');
			$('.'+base.options.classPrefix+'right', base.el).removeClass(base.options.classPrefix+'right');
			$('.'+base.options.classPrefix+'left', base.el).removeClass(base.options.classPrefix+'left');
			$('.'+base.options.classPrefix+'more'+' strong', base.el).remove();
			$('.'+base.options.classPrefix+'more', base.el).removeClass(base.options.classPrefix+'more');
			$('ul', base.el).removeAttr('style');
            $('.'+base.options.classPrefix+'back').parent().remove();
			isCreated = false;
		};
		
		base.init();
	};
	
	$.responsive.slider.defaultOptions = {
		classPrefix: 'slider-',
		transitionTime: 200,
		backWording: "Back to",
		moreArrow: "&#x25B6;",
		prevArrow: "&#x25C0;",
		initPlugin: true
		// TODO: Add option for max levels
	};
	
	$.fn.slider = function( options ) {
		return this.each(function () {
				(new $.responsive.slider(this, options));
		});
	};
	
})( jQuery );

$(document).ready(function() {
  $('nav').slider();
});
              
            
!
999px

Console