Ive been working on couple of games for some time now, and of course I run into my age-old nemesis, namely CSS problems

I'm trying to come up with css file that I could include into published file, to make every game into same kind of design but no luck so far - of course if I edit published file and then make a new version, all changes need to be re-applied, that way I've been trying to separate main CSS from published file and replace style with including external CSS (which is from the original code) and alas, no luck. Output goes completely messy so it's not the way to go.
The question is, am I going into this from wrong direction or... how can I accomplish what I'm trying to do? I'm not familiar if I can use external CSS to replace original, for example .passage design, the same way you can replace for example in PHP internal functions with your own.
Hmm.. bit messy story, but hopefully the idea comes clear - sometimes it's bit challenging to try to get thoughts into written form when working with non-native language

Harry
Comments
1. Create the file(s) that will contain all the CSS common to your projects.
You will need to store the CSS file(s) somewhere that can be found by the Twine 2 GUI, I suggest creating a css sub-directory/folder below the directory/folder you installed Twine 2 into.
2. Add a @import rule to your story's Stylesheet, it will look something like the following: 3. Remember to include a copy of your css sub-directory/folder and the CSS file(s) within it with the HTML file you create using the "Publish to File" feature.
Have you tried loading your external css file using javascript? Searching for "Dynamically loading an external CSS file" may help.
Which Visual Studio addon/feature are you using to convert the HTML file into an app?
Which type of app (mobile or decktop) are you trying to create?