Twenty Ten Side Bar extend

any ‘extension’ of the sidebar would only be an optical solution/illusion;

search for ‘faux column css’ to be applied to the style of #main;
this would involve adding a background image.
for instance, one example tutorial:
https://www.alistapart.com/articles/fauxcolumns/

https://www.w3schools.com/css/css_background.asp

Why would the style be applied to #main? Just curious as what I want to extend is the sidebar.

Oh and I have a background image in the sidebar which is why I want it to extend so that it’s not cutting the sidebar background off short from everything else. The site is https://alli-art.com you can see the problem on the sidebar.

Never mind. I just need to think “outside the box” literally. I figured it out. Place the image as a background in main and position it over to the widget side. Works great! Thanks!