itch.io

Thank you! I did it by asking itch.io support super super super duper nicely for CSS access, plus a bunch of bodged together code that looks something like this:

@media (min-width: 600px) {  
.custom-offset1{   
    transform: rotate(1deg)
    translateX(-10px); } 
.custom-offset2{   
    transform: rotate(-2deg)
    translateX(-20px); } 
.custom-offset3{   
    transform: rotate(1.5deg)
    translateX(160px); 
    padding-top: 10px; 
    max-width: 350px; } 
[etc.]