I want to link my g+ page with my website, put google analytics etc. all these need to add some code in different sections, like header, footer or whatever.
I would like to ask you how do we do this in child theme? We go to functions.php, or style.css, transfer the whole header code from parent theme and then just add our code customizations, or there is a different way?
Do we have to erase any code that takes the style.css from parent theme?
Thanks in advance!