Add Pinterest post to Squarespace

#1. In Pinterest, click on the 3 dots icon (…) of the post

#2. Next, you choose Get Pin embed code 

#3. Highlight and copy the code

#4. Edit the Squarespace page where you want to add Pinterest post > Add a Code Block

Paste the code

#5. Result

#6. On Mobile, you will see this problem with Pinterest Post

#7. You can use this code to Custom CSS box to fix the problem

@media screen and (max-width:767px) {
iframe[src*="pinterest"] {
    width: 100% !important;
}
}

#8. Result