### Description <!-- or the shortest sequence of actions to replicate the problem --> Bug reported via email: 1. Add the following to the editor ```css #add-sign { display: block; } ``` 2. Notice that `#add-sign` (and `#add`) are mistaken as a color ### System Information - OS: <!-- Windows, MacOS, Linux --> Any - Browser: <!-- Chrome 91, Firefox 90, Edge 91, Safari 14 --> Any - Stylus Version: <!-- 1.5.21, shown in chrome://extensions or about:addons --> Any ### Screenshots, links, CSS <!-- Screenshot or a screen recording to illustrate the problem -->  <!-- URL for published styles --> <!-- CSS for unpublished styles can be added inside the fenced block like this: ```css body { color: red } ``` -->