I can't save changes in the Design window.

When I make changes in the Design window through CSS and try to go back to Builder I don't seem to have an option to save my changes.  If I go back to Builder my changes are lost.

If you use the "Form Designer", you can click on the "Save" button, which is located at the bottom right corner.

If you use the "Advanced CSS Editor", you should click on "Save changes" button, which is located at the top left corner.

I Used the save option in the design window and tried to return to the build window and I got a message: do you want to cancel changes.  But if I stay in the design window the changes are saved. 

I Used the save option in the design window and tried to return to the build window and I got a message: do you want to cancel changes.  But if I stay in the design window the changes are saved. 

Can you please add "!important" tag into the CSS code? There should be a CSS code conflict. If you give priority to a CSS code, it may be active. 

I now have the changes saved when I preview the document, but when I go back to build the custom CSS changes don't show up.

Hello there.
The "!important" tag should be added between value and semicolon. For example,
#cid_33 {
width : 50px !important;
}

As far as I see you want to expand the width of the input fields "Number of Days" and "Number of Hours". And you are using the IDs "#cid_29" and "#cid_33". These IDs belong to div elements. Not input elements. If you want to expand the inputs fields' width please use this code.
#input_29 {
width : 50px !important;
}
#input_33 {
width : 50px !important;
}
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