[enhancement] Throwing error when there is parsing issue in style

For example, when using the following as a style,

```
padding: [Spacing.Md)px [Spacing.Md]px [Spacing.Md]px [Spacing.Md]px;
```

it would throw a parsing error due to `[Spacing.Md)px`

I believe this would save a lot of time during debugging (just spent 1.5h looking for the `)`)

I'm not sure if there is anything for this yet, but no errors were thrown when I ran the program