You are currently browsing from computer. Try it on your mobile device. This box only visible when browsing from non mobile device.
You can see this box because you are browsing from an iOS device.
You can see this box because you are browsing from an Android device.
You can see this box because you are browsing from a Windows Phone device.
OS Detection is detect the what device is browsing. By adding this class,you can show it only in those os.
Add .android-detectionto visible only on Android devices.
Add .ios-detectionto visible only on iOS devices.
Add .windowsphone-detectionto visible only on Windows Phones.
.non-mobile-detectionto visible on Non-mobile devices(Desktop).