Put image in the background

Using Django Mystery Errors
4

file configure

settings.py

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.1/howto/static-files/
STATIC_URL = 'static/'

modify my style.css

.imagen-inicio {
    background-image: url('../img/inicio-gb.jpg') 50% 0 no-repeat fixed;
    object-fit: fill;
}

inicio.html

{% extends 'core/base.html' %}

{% block title %} Inicio {% endblock %}

{% load static  %} 


{% block content %}
<div class="container">

  <div class="imagen-inicio">

   

  </div>  
</div>     
{% endblock %}

But No upload image