The Style Text Obsidian plugin allows to create as many CSS Styles as you wish: Then, they will be available to be applied to the selected text in the editor via Commands (Command Palette): Each ...
IntelliSense should recognize text-autospace as a valid CSS property. No error should be shown. Syntax highlighting should work normally.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results