Building a web app for desktop and mobile devices? Developr is for you. Write your code once, and let it handle the magic of responsive webdesign. Developr Admin skin is a flexible responsive HTML5/CSS3 template, built on the mobile-first principle and based on the solid fundations of HTML5 Boilerplate and 320andUp, which provides a rich set of styles and features for all your needs.
Updated to v1.7! See at the bottom for a detailed list of changes.
Main features
Adaptative layout

- Fluid design with 5 different layouts ranging from smartphone to wide screen.
 - 12 columns CSS grid with the ability to set custom sizes for each responsive layout.
 - All elements are responsive too: navigation, tabs, notifications, agenda, forms, tables, content panels…
 
Built-in plugins

- Powerfull and highly customizable features: tooltips, modal windows, notifications, confirmation message, tabs, styled form elements, navigable and collapsible menus, content panels…
 - Most plugins allow inline configuration with classes and data attributes – no script needed.
 - Plugins are touch-screen ready
 
Everything you need

- Ready to use styles for most needed features: lists, tables, agenda, calendars, galleries, files, blocks, forms, icons, messages, sliders, progress… And much more.
 - Includes plugins for WYSIWYG editor, date picker, table sorting…
 - Large set of utility classes to build your own styles and elements in no time and without touching CSS: layout, colors, shadows, gradients, position…
 
More!
Styles
- 9 colors sets with for each one a solid background color, a border color, a gradient, a hover style and an active style
 - 122 vector icons using the awesome icon webfont Entypo
 - Many visual elements to provide additional informations and customize your elements easily
 - 3 different tabs styles
 - Several columns styles
 - Agenda styles, with full-week view and automatic scrolling for smaller screens
 - New! 30 days calendar, in 4 sizes and fluid layout
 - New! files lists and icons
 - New! Images gallery
 - Events list
 - 2 tables styles, both responsive and sortable
 - 6 Error pages: 400, 401, 403, 404, 418, 500 and 503
 - Complete form styling with replacement for checkbox, radios, selects and highly customizable iOS-like switches
 
Features
- Automatic template setup: all your plugins fired automatically, everywhere
 - Responsive changes events and control methods
 - Innovative size change events
 - Most plugins use inline options for shorter and smarter code
 - Navigable menus (like iOS configuration menus)
 - 6 different ways to display information to user:        
- Complete notification system, with ability to use browser’s desktop notifications when available
 - Messages styles and API
 - Powerful modal window with replacement for default alert, confirm and prompt
 - Flexible and highly customizable tooltips
 - Confirmation tooltip on links and buttons, just by adding a class
 - Information bubbles to provide help to the user
 
 - Custom scroll (touch compatible)
 - New! Content panels
 - Flexible and customizable sliders and progress bars, with a complete API and 70+ options
 - Auto-resizing textareas
 - WYSIWYG editor
 - Compatible with IE7+ and all modern browsers
 
What you get
The template package contains:
- The template file, ready to use, with 24 examples html files
 - 3 different login pages
 - 7 error pages
 - Complete template PSD set: layout, elements, login, color themes, iOS icon kit, iOS splash screens kit, and more…
 - Comprehensive documentation: every feature is detailled with ready-to-use examples
 - Bonus! The template landing page is also included (PSD and html files)
 
Changelog
- v1.0        
- Initial release
 
 - v1.1        
- NEW Added form validation
 - NEW Added input placeholder polyfill for older browsers
 - NEW Added fixed-size and fluid-size calendars styles and plugin
 - NEW Added files icons and lists styles
 - NEW Added images galleries styles
 - Several minor CSS fixes
 - High resolution shortcuts icons have now the correct size
 - Fixed too large radio/checkbox on login pages
 - Upgraded Modernizr to use built-in features detection for pointer-events, box-sizing and details
 - Upgraded GlDatepicker’s custom stylesheet to match the new calendar style
 - Better setup for tabs, accordions and selects
 - Fixed select replacements too small on iOS devices
 - Select replacements now open on click on the whole element
 - Number inputs get focus after each click on up/down arrows
 - Enable back keyboard focus for switches and checkbox/radio
 - Tooltips now have the option to close on click on element
 - Enable last-child support on IE8
 - Fixed viewport-width bug on iPad for the landing page
 
 - v1.2        
- New Added responsive content panels styles and plugin
 - New Added files explorer example layout
 - New Added mail inbox example layout
 - New Added collapsible menus plugin
 - New Added DataTables plugin support with custom styling
 - Navigable menus can now show a specific inner element at startup
 - Fixed button-groups to work also with big and huge sizes
 - Switches can now be dragged for a more natural feeling
 - Value inputs now work with mousewheel
 - Added a style for files and icons list on dark background
 - Changed file icon class file-text to file-txt to fix an interaction with the file input style
 - Added arrow-up and arrow-down styles for lists arrows
 - Added support for fixed-position title bar on mobile layout
 - Added support for form validation on selects
 - Improved custom scroll plugin to work on absolutely positioned elements and to handle when scrollbar have been removed
 - Custom scroll no allow continuous scrolling even on touch devices
 - Fixed a bug with font-icons sizes in IE8
 
 - v1.3        
- New Added wizard styles and plugin
 - New Added search feature for long selects
 - New Added bottom and right tabs styles
 - New Added simple style for Datatables plugin
 - Added ajax content loading for tooltips
 - Added visual styling for current element in big menus
 - Added support for optgroups
 - Improved replaced inputs tabindex detection
 - Added custom event update-select-list to force refresh of selects when changing content
 - Improved datepicker for better support in overflow:hidden elements
 - Navigable menus now trigger navigable-open and navigable-close events
 - Collapsible menus now trigger collapsible-open and collapsible-close events
 - Tabs now trigger showtab and hidetab events
 - Improved legacy browser’s features detection
 - Drop down navigation menu (on mobile layout) now closes when losing focus
 - Added syntax to style the size select when using Datatables plugin
 - Fixed a bug with selects width detection under webkit browsers
 - Selects with multiple selected values now display the correct value on load
 - Fixed a bug with responsive tables on webkit browsers
 - Fixed a bug with custom scrolling
 
 - v1.4        
- New Added RTL version
 - New Added CSS classes to display/hide elements depending on active media query
 - New Added support for webapp mode under iOS (links open in the app, not in Safari)
 - New Added support for one side shortcut at the bottom
 - New Added automatic positioning for info-spots bubbles
 - New Added compact and mini sizes for fields lists labels
 - New Confirm plugin now allow direct call on target element, several minor improvements also included
 - New New methods for content panels to refresh content
 - New Added custom method to reset navigable menu to main level
 - New Added method to show a specific tab
 - New Added auto-close delay option for messages plugin
 - New Added an option to display the parent menu name in the back button in navigable menus
 - New Added example page for full height content-panels layout
 - Upgraded several external libs and plugins
 - Improved fixed position support detection
 - Improved fixed title bar handling
 - Added a visual style for disabled select options
 - Added visual style for active sorting column with DataTables
 - Content panels now accept options for the ajax call
 - Added l18n number formatting options for number inputs
 - Improved styled selects on touch screens
 - Added option to pass custom classes to modal windows main element
 - Added modal drag on touch screens
 - Upgraded $.modal.prompt method and $.modal.confirm to allow more options overriding
 - Added options to change prompt and confirm modal windows buttons text
 - Added automatic fading on custom scrollbars
 - Improved support for validation plugin in wizard
 - Improved auto-resizing textareas support
 - Improved the look of some form elements
 - Splash screen now displays correctly on iPad in landscape mode
 - Fixed an issue with font-icons alignement on block-lists under some browsers
 - Fixed duplicated icon class names
 - Fixed title bar buttons position in reversed mode
 - Fixed side tabs missing hover effect in reversed mode
 - Fixed tabs redraw issue with older versions of IE when changing media query
 - Fixed issues with styled forms elements and validation plugin
 - Fixed issues with placeholders being submitted
 - Fixed issues with inputs placeholders and validation plugin
 - Fixed issues with focus detection on IE7/8
 - Fixed an issue in detection of fixed-width selects size
 - Fixed an issue when submitting form with an open drop-down select list
 - Fixed missing disabled state for multiple selects
 - Fixed an issue with text selection when using switches
 - Fixed issue with iFrame size on modals
 - Fixed issue with autospacing on slider/progress
 - Fixed duplicate buttons in wizard in some cases
 - Fixed issue with glDatePicker calendar when using static mode
 - Fixed button-icons position under Firefox
 - Added a workaround for jQuery’s inconsistency accros browsers on css() with percentage values
 
 - v1.5        
- New Added iPhone 5 and retina screens full support (viewport ratio and splash screens)
 - New Added fixed width for icons in inputs lists, so they line up perfectly
 - New Added a required style for labels
 - New Added a style with legends for the shortcuts sidebar
 - New Added the custom event jsautoexpand to trigger a resize with javascript on auto-resizing textareas
 - New Added ajax options editing in onStartLoad callback in content panels
 - New Improved width detection for styled selects (matches the native select size, even when it changes)
 - New Added a custom event silent-change to update styled selects/radio/checkboxes/switches without triggering the change event
 - New Form styling plugin has been completely rewritten and improved, with better touch devices support
 - New Added the option staticValue for styled selects, to specify a text to display no matter the value
 - New In the modal plugin, added the options resizeToFit and closeOnBlur
 - New In the modal plugin, added the options password for the $.modal.prompt method to use a password input
 - New Added methods lockWizard() and unlockWizard() to the wizard plugin
 - New Improved wizard validation process, and added option useValidation to disable automatic validation
 - New Added example code to enable browse history in content-panels
 - Fixed a table border style issue in some older browsers
 - Fixed the fieldset border issue when a legend is defined in IE
 - Fixed the ckeckbox issue on iPad
 - Added a max-width to extendable select lists on smaller screens
 - Fixed the columns style precedence issue
 - Fixed the fallback for the style translucid in older browsers
 - Added a black style for radios inputs
 - Added a fallback for the stripes style for older browsers
 - Fixed the button-icon position on full-width pseudo-inputs
 - Fixed a typo in some button-group styles
 - Fixed a bug in the accordion plugin which prevented size equalization
 - Added a check to prevent double initialization on content-panels
 - Added a fix for the floating values precision JS bug in number inputs
 - Added support for number inputs to methods enableInput() and disableInput()
 - Fixed the issue with disabled number inputs where button still change the value
 - Selects are no longer removed from their parent form when opened
 - Fixed keyboard navigation on styled selects: disabled options are no longer selected
 - Fixed the issue on modal windows when opening with a DOM node as content
 - Fixed the issue on modal windows where the option scrolling: false was ignored
 - Improved internal setup for navigable menus
 - Fixed an issue with navigable menus back button where the text was not set
 - Fixed the bug on sliders where a value of 0 was replaced by the default value
 - Fixed an issue with tooltips’ position when scrolling
 - Added automatic path detection for the Respond.js file
 - Improved position: fixed detection
 - Fixed the bug which caused size-related events to stop working in some cases
 - Improved webapp mode support
 - Updated jQuery to the latest version (1.9.1)
 - Updated Modernizr to the latest version (2.6.2)
 - Updated Entypo Icon Font to the latest version: 284 icons available now!
 - Updated glDatePicker to the latest version (2.0), and added a compatible Developr theme (with fluid and fixed-size variants)
 - Updated DataTables plugin to the latest version (1.9.4)
 - Updated Validation Engine to the latest version (2.6.2)
 - Updated Tinycon to the latest version (0.5)
 - Updated jQuery Details Polyfill to the latest version (0.1.0)
 
 - v1.6        
- NEW added support for count style in the side shortcuts
 - NEW added toggle mode for accordions
 - NEW content panels: added the content-panel-load event
 - NEW content panels: added methods setPanelNavigation() and setPanelContent() to allow custom markup injection
 - NEW improved support for custom decimal point and thousands separator in number inputs
 - NEW added an option to enable horizontal scrolling in modals
 - NEW added the custom event navigable-ajax-loaded when a navigable menu is loaded using ajax
 - NEW added onStartDrag and onEndDrag callbacks on sliders
 - NEW added support for custom decimal point and thousands separator in sliders
 - NEW added zerofill option on sliders to match desired precision
 - NEW responsive table plugin now processes empty tables
 - NEW wizard: the wizardleave event now receive a custom object with additional data
 - wizard: improved internal steps handling
 - fixed the duplicated icons issue in old IE versions
 - fixed an broken image reference in dashboard.css
 - added a fix for Firefox button size bug
 - fixed an issue with headers on DataTables with fixed headers
 - fixed the height issue on the back button of navigable menus when the menu is hidden
 - updated jQuery to 1.10.2, and added the source map file
 
 - v1.7        
- Upg. updated icons font to improve compatibility with IE11+
 - New toggle mode for accordions now allow all sections to be closed at first
 - New custom texts buttons for confirmation modals can now be styled
 - New custom vertical scroll bar can now be positionned on left
 - improved support for styled drop-downs with long options lists
 - improved hover detection for custom scroll bars when using both scrollbars
 - fixed an issue with the onStartLoad callback on content panels
 - added the missing 24px icon for PDF files in the fineFiles directory
 - fixed an issue with styled radios groups with no checked elements
 - improved tooltips’ hide animation
 - fixed a styling issue with the menu button on RTL version
 - button groups can now span over multiple lines