please click on each link to understand my question

[first created my custom Component](https://i.stack.imgur.com/nqDVK.png)

[added the component in app module](https://i.stack.imgur.com/jIQ9e.png) 

[when i use my custom component in appcomponent.html browser unable to retrive my html in selector and template of my customer component](https://i.stack.imgur.com/vuppU.png)