Apple is expected to unveil iOS 7 on Monday, with a totally redesigned user interface also rumoured to be on the cards. But, if you can't wait until then, Recombu has created an interactive iPhone 5S and iOS 7 concept to keep you entertained in the meantime.

The concept, built using HTML, CSS and JavaScript, lets you experience what iOS 7 might be like when it is unveiled at Apple's WWDC keynote on 10 June. It is based on the rumours that say Jony Ive has overseen a complete overhaul of the iPhone, iPad and iPod touch's user interface, to bring a flatter, more minimalist design to the mobile operating system.

See: What to expect from Apple at WWDC 2013

We could see brand new Apple app icons in iOS 7, and a lack of skeuomorphic design elements such as the realistic-looking notebook design of the Notes app, for example. More: iOS 7 release date, rumours and leaked images

"This concept is intended to be a fun way for people to interact with the idea," says Recombu. "From a technical point of view, the challenge was to build this entire concept without using any images and instead, building the iPhone, icons and apps solely out of CSS and HTML code."

The developers of the concept have reimagined the Messages, Calendar, Camera, Notes, Phone, Mail, Safari, Music and Reminders apps. You can even use your webcam to capture a photograph in the Camera app.

For an extra bit of fun, Recombu has also added the option to change the colour of the iPhone itself to Red, Blue, Pink, or Orange, based on the rumours that the iPhone 5S could come in multiple colour options. See: iPhone 6 release date, rumours and leaked images

To have a play with the interactive iPhone 5S and iOS 7 concept, click here.

See also:

Why iOS is the future of Apple (and how we got here)

Gumdrop makes 15,000 iPad 5 cases in preparation for (unlikely) WWDC launch

Massive iOS 6 update is good news for Apple's iOS 7 launch

WWDC history: Apple product launches from the past 10 years

Apple decorates WWDC 2013 venue with "Where a whole new world is developing" banner

How much will Apple change iOS and OS X ?

Does Apple's WWDC 2013 app give us our first look at iOS 7's new design?