Board Thread:Support Requests - Getting Started/@comment-25828160-20170402035312/@comment-9605025-20170402222211

Gogobell wrote: Does it change anything ? I added it.

I mean the thing works but it worked without the bracket as well. As with almost any markup/programming language, the computer cannot interpret what you mean; it can only translate what it has been given. The closing curly brace indicates the end of the parameter values to be applied to elements that match the preceding selector. The "translator" for a markup/programming language that is designed with protections will attempt to check for pieces of code it cannot resolve. If it is a minor and common mistake, it may automatically guess at the proper fix. Otherwise, at best, it will simply tell you there is a syntax error and refuse to work. In extreme cases, it could mess-up how all the other lines are interpreted and produce something incomprehensible. Fortunately, CSS only affects the visual display so it would be hard to do much damage with improper CSS.

My guess as to why you didn't see any difference is that the open-ended curly brace set was for the last selector on the page. If you were to place more CSS after it without correcting the mistake, you would probably trigger an error notice.