hi @tuanphan
been using squarespace for our clients for 2-3 years now and been adding custom codes but for html and css only.
this time, a client wants to copy the execution of the events section in https://www.nationalgallery.org.uk/ wherein there is some sort of card slider. i found this https://codepen.io/alextanta/pen/mXxxgj and i can probably work from it customising the html and css. however, i just can't seem to make it work, tried to put JS in block, page header, code injection, too.
can you help me what to do so i can make the one in that code pen work in our site? our squarespace site is 7.1
thanks!