{% extends "base" %} {% block body %} <div style="width:50%;" class="container-fluid"> <form action="./sign_in" method="post"> <div class="mb-3 row"> <label for="user_name" class="col-sm-2 col-form-label">Username</label> <div class="col-sm-10"> <input type="text" class="form-control" name="user_name" required> </div> </div> <div class="mb-3 row"> <label for="password" class="col-sm-2 col-form-label">Password </label> <div class="col-sm-10"> <input type="password" class="form-control" name="password" required> </div> </div> <button class="btn btn-primary" type="submit">Sign in</button> </form> </div> {% endblock body %}