<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8"/>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Welcome to demo</title>

    <!-- styles -->
    {% style """/assets/bulma/css/bulma.min.css" %}
    {% style """/assets/material-icons/css/material-icons.min.css" %}

    {% style """/css/screen.css" %}
  </head>
  <body>
      <!-- navbar -->
      <nav class="navbar is-info">
          <div class="container">
              <div class="navbar-brand">
             