ZeroToDev

📚 Table of Contents   Introduction   HTML Code   CSS Code   JavaScript Code   Download Project   FAQ 🌙 Dark Mode How to Build a Stopwatch App Using HTML, CSS & JavaScript In this advanced version, you get dark mode, floating TOC, syntax highlighting, download button, and full responsive layout. Perfect for professional Blogger coding tutorials. 📌 Introduction This stopwatch measures minutes, seconds, and milliseconds using JavaScript timers. Beginner-friendly and perfect for web development learners. 🧩 Step 1: HTML Code   Copy   Run <div class="stopwatch-container">   <h1>Stopwatch</h1>   <div id="display">00:00:00</div>   <div class="buttons">     <button id="start">Start</button>     <button id="stop">Stop</button>     <button id="reset">Reset</button>   </div> </div> ...

HTML Calculator Tutorial for Beginners — Build a Calculator with HTML, CSS & JavaScript Learn to create a clean, responsive calculator step-by-step. Includes source code you can copy, a live demo, FAQ, and schema markup — optimized for Blogger. ⏱️ Estimated read: 6 min · 📁 Category: HTML / JavaScript Ad space — place your AdSense / banner here (300×250 / responsive) Table of Contents Introduction Step 1 — HTML Structure Step 2 — CSS Styling Step 3 — JavaScript Logic Live Demo FAQ Schema & SEO Introduction In this tutorial you'll build a simple but robust calculator using plain HTML, CSS and JavaScript. The app supports clicking buttons, keyboard input, decimal points, clear and backspace, and safe evaluation. Use the...

📝 HTML Notes App Tutorial for Beginners (Full Project) In this tutorial, you will learn how to build a fully functional Notes App using HTML, CSS, and JavaScript. This app works on all devices and saves notes even after refreshing the page! ✨ Features of This Notes App Add new notes Edit notes Delete notes Dark Mode Search notes Auto-save using LocalStorage No backend needed 📌 Step 1 — HTML Structure Copy Code Run Demo <div class="container"> <h1>Notes App</h1> <button id="toggleDark">🌙 Dark Mode</button> <input type="text" id="searchBox" placeholder="Search notes..."> <textarea id="noteInput" placeholder="Write your note here..."></textarea> <button id="addNote">Add Note</button> <div id="notesList"></div> ...

📸 HTML Image Gallery Tutorial for Beginners Image galleries make your website more beautiful and professional. In this tutorial, you will learn how to create different types of image galleries using HTML and CSS. 📌 1. Simple HTML Image Gallery This is the most basic gallery layout. <div> <img src="image1.jpg" width="200"> <img src="image2.jpg" width="200"> <img src="image3.jpg" width="200"> </div> ✔ Explanation All images are inside a <div> Each image has the same width They appear in a row 📌 2. Responsive Image Gallery (CSS Grid) This gallery automatically adjusts on mobile and PC. <style> .gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; } .gallery img { width: 100%; border-radius: 10px; } </style> <div class="galle...

HTML Tables Tutorial — Learn Tables with Examples Tables organize tabular data (rows & columns). They are great for schedules, price lists, spec sheets, comparison charts, and any data that fits a grid. This guide covers: Table basics: <table> , <tr> , <td> , <th> Headers, captions, and groups ( <caption> , <thead> , <tbody> , <tfoot> ) Colspan & rowspan Styling and responsive tables Accessibility and best practices Table of Contents Basic Structure Headers & Captions Colspan & Rowspan Grouping Rows: thead / tbody / tfoot Styling Tables Responsive Tables Accessibility Tips Practical Examples Best Practices 1. Basic Structure Minimal valid table: <table> <tr> <td>Cell 1</td> <td>Cell 2</td> </tr> </table> Elements: <ta...

HTML Forms Tutorial HTML Forms Tutorial HTML Forms allow users to enter and submit data. They are used everywhere—login forms, signup forms, search boxes, feedback forms, etc. In this complete tutorial, you will learn all form elements with examples and demos. 1. What is an HTML Form? A form collects user input using different form elements like text fields, checkboxes, radio buttons, buttons, and more. <form> Form elements go here... </form> 2. Basic Form Structure <form action="#" method="post"> <input type="text" placeholder="Enter name"> <button>Submit</button> </form> Submit Attributes: action → URL where form data is sent method="POST" → Secure data sending method="GET" → Data shows in URL 3. Text Input Field <i...

HTML Images Tutorial HTML Images Tutorial The <img> tag is used to display images on a webpage. In this tutorial, you'll learn how to add images, resize them, add borders, captions, and more. 1. Basic Image Tag The simplest way to add an image is by using the src and alt attributes. <img src="image.jpg" alt="My Image"> Attributes: src → Image URL alt → Text shown if image fails to load 2. Image Size (width & height) You can resize an image using width or height . <img src="photo.jpg" width="300" height="200"> 3. Responsive Images Responsive images automatically adjust to device size. <img src="photo.jpg" style="width:100%;max-width:400px;"> 4. Add Border to Images <img src="file.jpg" style="border:3px solid #333;...

HTML Buttons & Links Tutorial HTML Buttons & Links Tutorial Buttons and links are the most used interactive elements in websites. This guide explains how to create, style, and use <button> and <a> tags with real examples. 1. HTML Links (<a> Tag) The <a> tag is used to create hyperlinks on a webpage. <a href="https://example.com">Visit Website</a> Visit Website (Demo) Common Attributes for Links href → The URL of the page target="_blank" → Opens link in new tab title → Tooltip when hovering <a href="https://google.com" target="_blank" title="Open Google">Google</a> 2. HTML Buttons (<button> Tag) Buttons are used to perform actions such as submitting forms or running JavaScript. <button>Click Me</button> Click Me (Demo) Types of But...

HTML Attributes Tutorial – A Complete Beginner Guide HTML attributes provide extra information about HTML tags. They help control how elements behave, look, and function on a webpage. In this guide, you'll learn what HTML attributes are, how they work, the most common attributes, and examples with clean code. Table of Contents What Are HTML Attributes? How Attributes Work HTML Global Attributes Most Common Attributes Form-Related Attributes Boolean Attributes Practical Examples Best Practices What Are HTML Attributes? HTML attributes are special values added inside HTML opening tags to provide additional information about the element. They control behavior, appearance, accessibility, and more. Example: <img src="photo.jpg" alt="Beautiful image"> Here: src = image source alt = alternative text How Attributes Work Attributes always appear insid...

HTML Tags Tutorial – A Complete Beginner-Friendly Guide HTML tags are the basic building blocks of every webpage. Whether you want to create a simple webpage or a full website, understanding HTML tags is the first and most important step. In this post, we’ll explore what HTML tags are, how they work, why they matter, and the most commonly used tags with examples. Table of Contents What Are HTML Tags? How HTML Tags Work Types of HTML Tags Most Common HTML Tags Self-Closing Tags Nesting Tags Practical Examples Best Practices What Are HTML Tags? HTML tags are keywords enclosed in angle brackets < > that tell the browser how to display content. Tags create elements such as headings, paragraphs, images, links, lists, buttons, forms, and much more. Example of a simple tag: <p>This is a paragraph.</p> How HTML Tags Work Most HTML tags come in pairs: <opening-tag>...