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+##What are Components?
+Components are one of the most powerful features of Vue.js, helping you extend basic HTML elements and create reusable code. At a high level, Components are custom elements that Vue.js’ compiler would attach specified behavior to, or even transform the elements and their children.
+
+In some cases, a Component is indicated with a special attribute on an HTML element.
+
 ## Using Components
 
 ### Registration