There is one straightforward way to hide the navigation bar in Squarespace. First, go to the “Main Navigation” page, then click on the “Settings” icon of your target page.
In the pop-up window of “Page Settings”, click on the “Advanced” button.
Here, you will need to paste the code which will hide the navigation bar on your Squarespace website. Once done, click on “Save”.
Now your navigation bar has been removed!