@tarunkumarpro03

Tarun Kumar

@tarunkumarpro03Joined January 2026

Full Stack Developer | MERN Stack

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Tarun Kumar's blogs

Why VCS Exists: The Pen-drive Problemwhy-version-control-exist-pendrive-problem.hashnode.dev1 post

Inside Git: How It Works and .git Folderinside-git-and-the-git-folder.hashnode.dev1 post

Git for Beginners: Essential Commandsgit-for-beginners-basic-essential-commands.hashnode.dev1 post

Understanding Network Devicesunderstanding-network-devices-all.hashnode.dev1 post

How DNS Resolution Workshow-dns-resolution-working.hashnode.dev1 post

CSS Selectors 101: Targeting Elements with Precision

When we write CSS, we are basically telling the browser what to style and how to style it.But the big question is: How does CSS know which element to style? The answer is CSS Selectors. CSS selectors help us choose HTML elements so we can apply style...

Feb 1 · 3 min readcss-selectors-one-zero-one.hashnode.dev

Emmet for HTML: A Beginner’s Guide to Writing Faster Markup

When you start learning HTML, writing code feels slow and boring.You type many tags again and again: <div></div> <div></div> <div></div> Sometimes you think:“Is there a faster way to write HTML?” Yes! And the answer is Emmet What is Emmet? (In Very...

Feb 1 · 3 min reademmet-for-html-learn.hashnode.dev

Understanding HTML Tags and Elements

When you open a website, everything you see – text, images, buttons – is built using HTML. Think of HTML as the skeleton of a webpage. Just like your body needs a skeleton to hold everything in place, a webpage needs HTML to structure its content. W...

Feb 1 · 2 min readhtml-tag-element-all.hashnode.dev

TCP vs UDP: When to Use What, and How TCP Relates to HTTP

When we use the internet — open a website, watch a video, or send a message — data is moving from one computer to another.But this data does not move randomly.It follows rules. These rules are called protocols. Two very important protocols are TCP an...

Feb 1 · 4 min readwhat-tcp-vs-udp.hashnode.dev

TCP Working: 3-Way Handshake & Reliable Communication

When we use the internet—open a website, send a message, or watch a video—data is always moving from one computer to another. But what if data is sent without any rules? Messages can get lost Data can arrive in the wrong order Some data may be dup...

Feb 1 · 4 min readtcp-three-wayhandshake.hashnode.dev

Tarun Kumar

About

Available for

Tarun Kumar's blogs

CSS Selectors 101: Targeting Elements with Precision

Emmet for HTML: A Beginner’s Guide to Writing Faster Markup

Understanding HTML Tags and Elements

TCP vs UDP: When to Use What, and How TCP Relates to HTTP

TCP Working: 3-Way Handshake & Reliable Communication

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Tarun Kumar

About

Available for

Tarun Kumar's blogs

CSS Selectors 101: Targeting Elements with Precision

Emmet for HTML: A Beginner’s Guide to Writing Faster Markup

Understanding HTML Tags and Elements

TCP vs UDP: When to Use What, and How TCP Relates to HTTP

TCP Working: 3-Way Handshake & Reliable Communication