diff --git a/7-animation/2-css-animations/article.md b/7-animation/2-css-animations/article.md
index d658e8bb..ceb95cc9 100644
--- a/7-animation/2-css-animations/article.md
+++ b/7-animation/2-css-animations/article.md
@@ -8,7 +8,7 @@ JavaScript can be used to control CSS animations and make them even better, with
 
 The idea of CSS transitions is simple. We describe a property and how its changes should be animated. When the property changes, the browser paints the animation.
 
-That is: all we need is to change the property. And the fluid transition is done by the browser.
+That is, all we need is to change the property; and, the fluid transition will be done by the browser.
 
 For instance, the CSS below animates changes of `background-color` for 3 seconds: