Added missing close parenthesis.

Author: equiamos

sites/en/frontend/basic_CSS.step

@@ -94,7 +94,7 @@ When you save and refresh your browser, you should see the styles you added:
 
 <img src='img/hello_style.png'>
 
-The `type` and `media` attributes inside of the `<style>` tag give the browser more context for how to deal with the included information. In this case, we're telling it that the type is HTML/CSS, and that it's being displayed on a screen (as opposed to `media=\"print\"`, which is usually specially styled so it looks reasonable when printed.
+The `type` and `media` attributes inside of the `<style>` tag give the browser more context for how to deal with the included information. In this case, we're telling it that the type is HTML/CSS, and that it's being displayed on a screen (as opposed to `media=\"print\"`, which is usually specially styled so it looks reasonable when printed).
 
 To visualize the relations between elements of **Content**, **Padding**, **Border**, and **Margin**, otherwise known as the CSS Box Model, here is an example of how this fits in: