update to bootstrap 4

templates/_base_accounts.html

@@ -0,0 +1,17 @@
+{% extends '_base.html' %}
+
+{% load static %}
+
+{% block stylesheet %}
+  <link rel="stylesheet" href="{% static 'css/login.css' %}">
+{% endblock %}
+
+{% block body %}
+  <div class="container">
+    <h1 class="text-center logo my-4">
+      <a href="{% url 'billard:location_index' %}">carom</a>
+    </h1>
+    {% block content %}
+    {% endblock %}
+  </div>
+{% endblock %}