In fact, the behavior is a bit inconsistent. Looking in citrus completed/css/desktop.css in `#container`:

1. put cursor at start of `margin-top`
2. press ctrl-space
3. press down arrow (to select `align-content`)
4. press enter
5. cursor is now **after** the colon

undo that change.

1. put cursor at start of `margin-top`
2. press ctrl-space
3. type "a"
4. press enter (selecting `align-content` again)
5. cursor is now **before** the colon

undo that change

1. put cursor after the 'm' of `margin-top`
2. press ctrl-space
3. press down arrow (selecting `margin`)
4. press enter
5. cursor is now **before** the colon