iOS 7 How to Close Apps
Double Tap the Home Button... Then swipe the App (not the icon) Upwards... Tap the Home Button when finished.
More Info on Multitasking Here > http://support.apple.com/kb/HT4211
What pages are you referring to?
If in Safari, tap the lower right icon to view all tabs, then swipe the page you want to close to the left or right.
If you mean you want to close open apps, see: https://sites.google.com/site/appleclubfhs/support/advice-and-articles/closing-a pps