This topic documents a feature of Binary Behaviors, which are obsolete as of Internet Explorer 10. Element behaviors are one of the most significant new capabilities in Microsoft Internet Explorer 5.5. They provide the capability to define custom elements, which can be used in the same way as normal HTML elements in a Web page. An element behavior can be written in script using an HTML Component (
![About Element Behaviors](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)