Sticky objects

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Hi everyone.
I'm trying to overlay an html file over a background image. Does anyone know how to make the html block stay there ie " sticky " ?

tjbphoto
 
JohntheFish replied on at Permalink Reply
JohntheFish
Have a look at
https://www.w3schools.com/cssref/css3_pr_background.asp...

In particular, you will need background image and attachment.
tjbphoto replied on at Permalink Reply
tjbphoto
Many thanks.