Typing every <div>, </div>, and the attribute gets tedious. Emmet is a shorthand language that expands into full HTML. What is Emmet? Emmet turns abbreviations into complete HTML. It's built into VS Code and most editors: div → <div></div> No more t...
When you visit a website, your browser sends requests to a server. cURL (Client URL) is a command-line tool that lets you do the same thing, i.e. send requests directly from your terminal. Think of it as a text-based browser without the visuals. Why ...
Your browser isn't just a "website viewer”. It's a sophisticated application with multiple components working together to turn code into the web pages you see. Let's follow the journey from URL to pixels on screen. The Main Components of a Browser Th...
HTML (HyperText Markup Language) structures all web content. It's not a programming language; it's a markup language that tells browsers what each part of a page is. HTML Tags: The Building Blocks A tag labels content. Think of it like a box with a l...
CSS selectors tell the browser which elements to style. Without them, you'd style everything the same way. The "Who" in Styling Think of selectors like addressing people: "Hey you" → Element selector (vague) "Person with blue shirt" → Class selecto...
What is DNS? DNS translates human-readable domain names to machine-readable IP addresses. When you enter a URL, your browser queries DNS servers to resolve the domain to its corresponding server location. Core DNS Record Types NS (Name Server) Record...
The internet functions because of standardized rules for data transmission. At the transport layer, there are mainly two protocols used in general: TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). They serve fundamentally differe...
How Internet Traffic Flows Through Devices Internet → Modem → Router → Firewall → Switch → [Your Devices] 1. Modem: The Translator Role: Connects your local network to the internetAnalogy: A translator between two languagesFunction: Converts digital...
DNS translates domain names to IP addresses. Instead of memorizing 172.217.0.46, you visit google.com. But how does this translation actually work? Enter dig - the DNS investigator tool. What is dig? dig (Domain Information Groper) is a command-line ...