Styling Landing Dashboard Page
#controllers/index.py
import config, copy
from flask import render_template, request, session, redirect
from flask_classful import FlaskView, route
from models.userdb import Userdb

class Index(FlaskView):
    def __init__(self):
        self.vdict = copy.deepcopy(config.vdict)
        self.userdb = Userdb()

    @route('/')
    def index(self):
        return render_template('index.html', data=self.vdict)

    @route('/login/', methods=['GET', 'POST'])
    def login(self):
        if request.method == 'POST':
            email = request.form['femail']
            password = request.form['fpassword']

            if(self.userdb.check_user(email, password)):
            if True:
                session['email'] = email
                return render_template('dashboard.html', data=self.vdict)
        
        else:
            if 'email' in session:
                return render_template('dashboard.html', data=self.vdict)
            
            return render_template('login.html', data=self.vdict)

    @route('/logout/')
    def logout(self):
        session.pop('email', None)
        return redirect('/')
<!--templates/dashboard.html-->
<!DOCTYPE html>
<html>
  <head>
    {% block head %}
    <meta charset="UTF-8"/>
    <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
    <meta name="description" content="This blog engine is built for e-learning">
    <meta name="robots" content="index, follow">
    <meta name='keywords' content='e-learning, learning, school, math, programming'>
    <title>{{data['blog_title']}}</title>
    <script src="/static/scripts/jQuery.js"></script>
    <script src='/static/scripts/base_dashboard.js'></script>
    <link href="/static/styles/base.css" rel="stylesheet" >
    <link href="/static/styles/base_dashboard.css" rel="stylesheet">
    <link href="/static/styles/menu_dashboard.css" rel="stylesheet">
    <link href="/static/fonts/setup.css" rel='stylesheet'>
    <link href="/static/images/site_logo.png" rel="icon">
    {% endblock %}
  </head>
  <body>
    <div id="header">
      {% block header %}
      <header id="inner" class="inner region">
        <div id="title">
          <a href="/"><img src="/static/images/site_logo.png" /></a>
          <a href="/login/">{{data['blog_title']}}</a>
        </div>
        <div id="blog-search">
          <form class="search" action="/search/backend/" method="post">
            <input type="text"  placeholder="Search.." name="fquery" required>
            <button type="submit">ស្វែង​រក</button>
          </form>
        </div>
        <div id="logout"><a href="/logout/">ចេញ​ក្រៅ</a></div>
      </header>
      {% endblock %}
    </div>
    
    <div id="main" class="main region">
      {% block main %}
      <div id="sidebar">
        {% block sidebar %}
        <div><a href="/posting"><img src="/static/images/posting.png" /></a><a href="/posting">ចុះផ្សាយ​មេរៀន</a></div>
        <div><a href="/categorizing"><img src="/static/images/categorizing.png" /></a><a href="/categorizing">បង្កើតប្រភេទមេរៀន</a></div>
        <div><a href="/paging"><img src="/static/images/paging.png" /></a><a href="/paging">បង្កើតទំព័រមាតិកា</a></div>
        <div><a href="/uploading"><img src="/static/images/multimedia.png" /></a><a href="/uploading">ចំលងឯកសារ</a></div>
        <div><a href="/addinguser"><img src="/static/images/user.png" /></a><a href="/addinguser">បន្ថែមសមាជិក</a></div>
        <div><a href="/setting"><img src="/static/images/setting.png" /></a><a href="/setting">កំណត់ទំរង់លក្ខណៈ</a></div>
        {% endblock %}
      </div>
      <div id="content">{% block content %}{% endblock %}</div>
      {% endblock %}
    </div>

    <div id="item-listing" class="item-listing region"></div>

    <div id="footer" class="footer region">
      {% block footer %}
      &copy; Copyright 2020 by <a href="https://www.khmerweb.app/">Khmer Web</a>.
      <script>var base = new Base();</script>
      {% endblock %}
    </div>
  </body>
</html>
/*static/styles/base_dashboard.css*/
#header{
  background: lightgrey;
  border-bottom: 15px solid rgb(172, 170, 170);
}
#header #inner{
  display: grid;
  grid-template-columns: 30% auto 25%;
  align-items: center;
  grid-gap: 10px;
  padding: 10px;
}
#header #inner #logout{
  text-align: right;
}
#header #title{
  display: grid;
  grid-template-columns: 35px auto;
  grid-gap:5px;
  align-items: center;
  font: 27px/1.5 Moul;
}
#header #title img{
  width: 100%;
}
#main{
  margin-top: 10px;
  display: grid;
  grid-template-columns: 25% auto;
  grid-gap: 10px;
}
#main #sidebar{
  background: lightgrey;
  padding: 20px;
  min-height: 300px;
}
#main #sidebar div{
  display: grid;
  grid-template-columns: 15% auto;
  grid-gap: 10px;
  align-items: center;
  font: 18px/1.5 Koulen;
}
#main #sidebar img{
  width: 100%;
}
#main #content{
  background: lightgrey;

}
#item-listing{
  background: lightgrey;
  margin-top:10px;
  min-height: 200px;
}

GitHub: "https://github.com/Sokhavuth/E-Learning
Heroku: https://khmerweb-elearning.herokuapp.com/