Pushy

Pushy is a responsive off-canvas navigation menu using CSS transforms & transitions. This project was inspired by the off-canvas navigation menu seen on Medium.

Pushy has been implemented on many sites, check them out! Feel free to let me know if you use Pushy in one of your websites.

Pushy has been featured on the Treehouse Show and in a book!

View Demo | Sites using Pushy

Features

Uses CSS transforms & transitions.
Smooth performance on mobile devices.
jQuery animation fallback for IE 7 - 9.
Menu closes when a link is selected.
Menu closes when the site overlay is selected.
Auto-collapsible submenus.
Left or right menu position.
It's responsive!

Requirements

jQuery 1.12+

Install

Download the latest release, this includes everything you need to get Pushy running on your site.

Add the stylesheet (pushy.css) in your head and the JS (pushy.min.js) file in your footer.
If you are using submenus, then you'll need to add the arrow.svg file into your img directory (optional).
Insert the following markup into your body.

<!-- Pushy Menu -->
<nav class="pushy pushy-left">
    <div class="pushy-content">
        <ul>
            <!-- Submenu -->
            <li class="pushy-submenu">
                <button>Submenu</button>
                <ul>
                    <li class="pushy-link"><a href="#">Item 1</a></li>
                    <li class="pushy-link"><a href="#">Item 2</a></li>
                    <li class="pushy-link"><a href="#">Item 3</a></li>
                </ul>
            </li>
            <li class="pushy-link"><a href="#">Item 1</a></li>
            <li class="pushy-link"><a href="#">Item 2</a></li>
        </ul>
    </div>
</nav>

<!-- Site Overlay -->
<div class="site-overlay"></div>

<!-- Your Content -->
<div id="container">
    <!-- Menu Button -->
    <button class="menu-btn">&#9776; Menu</button>
</div>

Development

Pushy CSS and JS are compiled and minified using Grunt. You'll need Node and Grunt installed globally.

From the root directory run:

$ npm install
$ grunt

Now you can edit files in /scss/ and /js/, which will be compiled to /css/pushy.css and /js/pushy.min.js automatically.

CDN

Link directly to Pushy files on cdnjs.

NPM

If your are comfortable with command line, you can install Pushy as a NPM package:

npm install @cmyee/pushy

Options

Menu Position

Use the .pushy-left or .pushy-right CSS class to specify the menu position.

<!-- Pushy will transition from the right -->
<nav class="pushy pushy-right">
    <div class="pushy-content">
        <ul>
            <li class="pushy-link"><a href="#">Item 1</a></li>
            <li class="pushy-link"><a href="#">Item 2</a></li>
        </ul>
    </div>
</nav>

data-focus

Use the data-focus attribute to give focus to a link when the menu is opened. Ideally the first link of the menu should be focused.

This data attribute accepts a CSS selector.

<nav class="pushy pushy-left" data-focus="#home-link">
    <div class="pushy-content">
        <ul>
            <li id="home-page" class="pushy-link"><a href="#">Home</a></li>
            <li class="pushy-link"><a href="#">About Us</a></li>
            <li class="pushy-link"><a href="#">Contact</a></li>
        </ul>
    </div>
</nav>

data-menu-btn-class

Use the data-menu-btn-class attribute to change the menu button CSS class for toggling the menu.

By default Pushy will use .menu-btn to toggle the menu.

This data attribute accepts a CSS selector.

<!-- Pushy Menu -->
<nav class="pushy pushy-left" data-menu-btn-class=".my-menu-btn">
	<!-- I've removed the inner markup for brevity -->
</nav>

<!-- Menu Button-->
<button class="my-menu-btn">Menu</button>

Tips

Use the .push CSS class on HTML elements outside of the #container.

<header class="push">
    <h1>This is a Heading</h1>
    <h2>This is a subheading</h2>
</header>

<!-- Your Content -->
<div id="container"></div>

If you are using SCSS, you can easily change the menu width by adjusting the $menu_width variable. The SCSS file will need to be compiled to CSS in order to see the change.

$menu_width: 400px;

Not using SCSS? You'll have to update the multiple values (or do a find a replace!) in the pushy.css file.

.pushy{
    width: 400px; /* Changed the width to 400px */
}

.pushy-left{
    transform: translate3d(-400px,0,0); /* Updated the values */
    /* Don't forget the vendor prefixes */
}

.pushy-open-left #container,
.pushy-open-left .push {
    transform: translate3d(400px, 0, 0); /* Updated the values */
}

.pushy-right {
    transform: translate3d(400px, 0, 0); /* Updated the values */
    /* Don't forget the vendor prefixes */
}

.pushy-open-right #container,
.pushy-open-right .push {
    transform: translate3d(-400px, 0, 0); /* Updated the values */
    /* Don't forget the vendor prefixes */
}

Only links with the CSS class of pushy-link will close the menu.

<nav class="pushy pushy-left">
    <div class="pushy-content">
        <ul>
            <!-- This link will close the menu -->
            <li class="pushy-link"><a href="#">Item 1</a></li>
            <!-- This link won't close the menu -->
            <li><a href="#">Item 2</a></li>
        </ul>
    </div>
</nav>

If you want to prevent scrolling of your site when Pushy is open just add overflow-x: hidden and height: 100% to both the html & body tags.

html, body{
    overflow-x: hidden;
    height: 100%;
    -webkit-overflow-scrolling: touch;
}

Browser Compatibility

Desktop	Mobile
IE 9-11	Chrome (Android)
MS Edge	Safari (iOS)
Chrome
Firefox
Safari (Mac)

Version History

1.3.0

Added the data-menu-btn-class attribute #131
Updated README.md with Development, NPM and Options sections.

1.2.0

Added support for a 3rd level submenu #129
Removed bower.json
Updated demo

1.1.2

Fixed formatting issues in README.md
Added repository + license to package.json

1.1.1

Published package to NPM.
Removed Bower support.
Updated demo & personal site links.

1.1.0

Accessiblity (a11y) enhancements:
- Can access and use menu with keyboard navigation.
- Can use the escape key to close the menu when opened.
- Changed the empty submenu links to buttons.
- Added data-focus attribute to allow user to specify a link to focus on when menu is opened.
- Added .pushy-content element to menu structure (fixes visibility flickering).
- Changed .menu-btn div to button.
Removed some redundant CSS classes from pushy.css.
Removed toggleSubmenuFallback function, older browsers will use toggleSubmenu instead.
Fixed issue #88

1.0.0

Added auto-collapsable submenus.
Added .pushy-right CSS class for right sided menu position.
Added SCSS files.
Added menu width SCSS variable.
Updated click event listeners.
Updated demo file.
Updated browser compatibility.
Removed unneeded CSS browser prefixes.
Consolidated menu state CSS classes.
Fixed brief menu visibility.

0.9.2

Removed modernizr dependency.
Updated site overlay with color + smoother transition.
Cleaned up the CSS a bit.
Dropped support for IE 7 & 8.

0.9.1

Added support for more menu items (with scroll bar).
Added the .push CSS class. This adds pushy support to additional HTML elements outside of the container div.
Fixed menu transition.
Tested in iOS 7.
Updated the demo file.

0.9.0

Added a site overlay when Pushy is toggled
Fixed horizontal scroll bar issue on mobile devices
Disabled webkit tap highlight
Rejiggered the JS file
Updated to jQuery 1.10.1
Updated the demo file

0.8.4

Fixed performance issue with mobile devices
Updated to jQuery 1.10
Updated the demo file
Updated the read me

Sites using Pushy

Pushy has been implemented on many sites in the wild, check them out:

Lela Design by @div3rDesign
emota by @YayRomina
Selby College by @welcomebrand
Bentleys Estate and Lettings Agents by @WolfHook
Firefox OS Devices by @s_hentzschel
FulcrumTech by @maxlapides
The Black and Blue by @evanluzi

Note: You may have to resize your browser on some sites to see Pushy in action.

To add your site, tweet to me @cmyee.

gkobilansky/pushy