I have a problem with including the input of angular material to my project because it does not work as it should visually. I leave you an image of how it looks 
I followed the instructions in the documentation step by step and nothing. This is my app module and my respective component
I've been with this for weeks and I can not fix it, any suggestions?
It may be that you need to include the subject.
You must include the pre-loaded theme of Angular Material in the " styles.css "
@import "~@angular/material/prebuilt-themes/indigo-pink.css";
If you need more information check: Theming your Angular Material app
Including a theme is required to apply all of the core and theme styles to your application. To get started with a prebuilt theme, include one of Angular Material's prebuilt themes globally in your application. If you're using the Angular CLI, you can add this to your styles.css: