So, you've just build your latest responsive web design masterpiece and you're adding the final touches for the mobile viewport. Suddenly you discover a form where the user must submit a profile image (or video or audio) in order to continue. Wouldn't it be nice to let the user use their phone in order to take a picture (or video or audio) with it, and at the same time keep the normal fall-back of the input file element for desktop browsers? Well you can, just use the below attributes on your input fields. Desktop browsers will use them as normal file inputs, while mobile devices will add this extra native flavour.
<input type="file" accept="image;capture=camera" /> <input type="file" accept="video;capture=camcorder" /> <input type="file" accept="audio;capture=microphone" />
I tested them and they work on iPhone (both on mobile Safari and mobile Chrome), but they will (probably?) work on any mobile device/browser (android/windows etc.)… Let us know in the comments or via twitter if they work for you.