Hey there! I'm not the designer, but it looks like you need to redo steps 1 and 2 of the instructions above.
I believe you're using the wrong base theme (it looks like you're using "Patsy"). So first you'll need to select one of the themes for "Basic Boxes" on the Select Journal Style page. (This link should pull up all of the Basic Boxes themes. Just apply any one of them.) Also on that page, at the bottom under "Choose a Page Setup," you need to select either "2 Column (sidebar on the left)" or "2 Columns (sidebar on the right)" in order for the custom CSS to work properly.
no subject
I believe you're using the wrong base theme (it looks like you're using "Patsy"). So first you'll need to select one of the themes for "Basic Boxes" on the Select Journal Style page. (This link should pull up all of the Basic Boxes themes. Just apply any one of them.) Also on that page, at the bottom under "Choose a Page Setup," you need to select either "2 Column (sidebar on the left)" or "2 Columns (sidebar on the right)" in order for the custom CSS to work properly.
Hope that helps!