changing things in target page

To add/remove/change anything in the target page’s source code, do the following:

Go to Site Settings Page
If you want to change things in category pages, activate Category Tab. If you want to change things in post pages, activate Post Tab.
Go to Manipulate HTML Section
Add/remove/change anything using the settings under this section. To learn more about the settings, see Manipulate HTML Section
Save the settings (See: Saving The Settings)
Optionally, go to Tester Page and test your settings (See: Testing site settings) to make sure everything is done as you want.

To learn more about which change occurs when, see Lifecycle of Events.