CSS and JavaScript frontend for a notes application

Looking to learn how to create your own CSS and JavaScript frontend for a note application? In this step-by-step tutorial guide, we’ll walk you through the process of building a sleek and modern Note front-end using CSS and JavaScript techniques. Whether you’re a beginner or an experienced developer, our tutorial is easy to follow and will help you create a nice-looking note application in no time.

  • The application uses LocalStorage to store the notes in JSON format.

HTML for the CSS Frontend

<!DOCTYPE html>
<html lang="en">
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/css/all.min.css" integrity="sha512-1PKOgIY59xJ8Co8+NE6FZ+LOAZKjy+KY8iq0G4B3CyeY6wYHN3yt9PW0XpSriVlkMXe40PTKnXrLnZ9+fkDaog==" crossorigin="anonymous" />
    <link rel="stylesheet" href="style.css" />
    <title>Notes App</title>
    <button class="add" id="add">
      <i class="fas fa-plus"></i> Add note

    <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/1.2.2/marked.min.js"></script>
    <script src="script.js"></script>

JavaScript for creating the notes and adding a note to screen

const addBtn = document.getElementById('add')

const notes = JSON.parse(localStorage.getItem('notes'))

if(notes) {
    notes.forEach(note => addNewNote(note))

addBtn.addEventListener('click', () => addNewNote())

function addNewNote(text = '') {
    const note = document.createElement('div')

    note.innerHTML = `
    <div class="tools">
        <button class="edit"><i class="fas fa-edit"></i></button>
        <button class="delete"><i class="fas fa-trash-alt"></i></button>
    <div class="main ${text ? "" : "hidden"}"></div>
    <textarea class="${text ? "hidden" : ""}"></textarea>

    const editBtn = note.querySelector('.edit')
    const deleteBtn = note.querySelector('.delete')
    const main = note.querySelector('.main')
    const textArea = note.querySelector('textarea')

    textArea.value = text
    main.innerHTML = marked(text)

    deleteBtn.addEventListener('click', () => {


    editBtn.addEventListener('click', () => {

    textArea.addEventListener('input', (e) => {
        const { value } = e.target

        main.innerHTML = marked(value)



function updateLS() {
    const notesText = document.querySelectorAll('textarea')

    const notes = []

    notesText.forEach(note => notes.push(note.value))

    localStorage.setItem('notes', JSON.stringify(notes))

The style CSS file

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;400&display=swap');

* {
  box-sizing: border-box;
  outline: none;

body {
  background-color: #7bdaf3;
  font-family: 'Poppins', sans-serif;
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding-top: 3rem;

.add {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background-color: #9ec862;
  color: #fff;
  border: none;
  border-radius: 3px;
  padding: 0.5rem 1rem;
  cursor: pointer;

.add:active {
  transform: scale(0.98);

.note {
  background-color: #fff;
  box-shadow: 0 0 10px 4px rgba(0, 0, 0, 0.1);
  margin: 30px 20px;
  height: 400px;
  width: 400px;
  overflow-y: scroll;

.note .tools {
  background-color: #9ec862;
  display: flex;
  justify-content: flex-end;
  padding: 0.5rem;

.note .tools button {
  background-color: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  margin-left: 0.5rem;

.note textarea {
  outline: none;
  font-family: inherit;
  font-size: 1.2rem;
  border: none;
  height: 400px;
  width: 100%;
  padding: 20px;

.main {
  padding: 20px;

.hidden {
  display: none;

MIT Licensed