Go to www.squarespace.com
When you login to the Squarespace site you'll be presented with the Websites and Domains dashboard. From there you will hover the mouse over the website under the Websites tab and click Edit Site.
You will click Settings on the left-hand side of the site editor.
Click Advanced.
Click Code Injection.
You will then enter both of the floating book now scripts into the Header and Footer sections and click Save.
The scripts have now been added and all you will need to check is the live site to ensure the floating book now widget is shown and works.
Please note the domain will need to be live in order for the floating book now widget to show and work on the website.
Changing Book Now Color
You can change the Book Now button color and widget button color on the client's Phorest system in Manager - Settings - Online - Setup & Appearance.