how to
-> add windows 7, windows 98, XP.css, getpaper.css or any UI libraries you can find, there will be instructions in them but this is an option to follow
1 to use them, import it from unpkg. there will be this <link rel="stylesheet" href="...">, copy that and paste in an embed
2 if you want to add a component of your choice, there will be this show code, you click that and copy what pops up underneath and paste it underneath the import stylesheet in number 1, for example you want to add the window with contents in it
3 so it must be like this for output :)