Mobile navigation on desktops
Having the mobile hamburger on desktops is great for websites where there is a lot in the navigation with different folders or the site is design led with images that you don't want to be covered. The great thing about Squarespace is that it is already mobile optimised, this is an extra little trick to take it that step further.
Once logged in, go to 'Design' and then 'Style Editor'.
In the search bar, start to type in 'mobile'. Then click on the area were the pixel number is and edit to 4000px - this allows for all sizes of screens and gives you so much wiggle room.
Then save and refresh!