Este es el contenido de base.html
Symfony recommends the following three-level template inheritance for medium and complex applications:
- templates/base.html.twig, defines the common elements of all application templates, such as <head>, <header>, <footer>, etc.;
- templates/layout.html.twig, extends from base.html.twig and defines the content structure used in all or most of the pages, such as a two-column content + sidebar layout. Some sections of the application can define their own layouts (e.g. templates/blog/layout.html.twig);
- templates/*.html.twig, the application pages which extend from the main layout.html.twig template or any other section layout.