Add Custom code/ CSS correctly

Custom Code/CSS can be added to these files:

• File assets/custom.css.liquid: Add Custom CSS here.
• File snippets/custom-code-head.liquid: Add Custom Code such as tracking script, meta tag before closing tag </head>.
• File snippets/custom-code-body.liquid: Add Custom Code such as tracking script before closing tag </body>.

If you made any customizations in these files:

• Any files created by a 3rd-party app or customized codes from merchants/dev teams;
• theme.liquid snippets;

then you would need to keep track of the files that have been modified in case you need to update your theme when new version is available.