--- title: "Dinesh Ahir (@sellerscalex) | Hashnode" description: "Dinesh Ahir (@sellerscalex) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@sellerscalex" --- @sellerscalex # Dinesh Ahir @sellerscalex · Joined December 2025 ### [TCP Working: 3-Way Handshake & Reliable Communication](https://dineshahir.hashnode.dev/tcp-3-way-handshake?utm_source=hashnode&utm_medium=feed) Learn how TCP ensures reliable communication through its 3-way handshake, managing packet loss, out-of-order delivery, and error detection 4 min read · [dineshahir.hashnode.dev](https://dineshahir.hashnode.dev/tcp-3-way-handshake?utm_source=hashnode&utm_medium=feed) [Feb 1](https://hashnode.com/posts/tcp-3-way-handshake/697f51cb3237a337bc5d6416) ### [TCP vs UDP: When to Use What, and How TCP Relates to HTTP](https://dineshahir.hashnode.dev/tcp-udp-key-differences-use-cases?utm_source=hashnode&utm_medium=feed) Learn when to use TCP's reliability or UDP’s speed in internet communication, and understand how TCP underpins HTTP operations 5 min read · [dineshahir.hashnode.dev](https://dineshahir.hashnode.dev/tcp-udp-key-differences-use-cases?utm_source=hashnode&utm_medium=feed) [Feb 1](https://hashnode.com/posts/tcp-udp-key-differences-use-cases/697f49aa910a096dd68830b1) ### [CSS Selectors 101: Targeting Elements with Precision](https://dineshahir.hashnode.dev/css-selectors-101-targeting-elements?utm_source=hashnode&utm_medium=feed) Learn how CSS selectors target HTML elements with precision. Understand the types, examples, and specificity for effective styling 3 min read · [dineshahir.hashnode.dev](https://dineshahir.hashnode.dev/css-selectors-101-targeting-elements?utm_source=hashnode&utm_medium=feed) [Jan 31](https://hashnode.com/posts/css-selectors-101-targeting-elements/697e74d6fde44c07008b985c) ### [Emmet for HTML: A Beginner’s Guide to Writing Faster Markup](https://dineshahir.hashnode.dev/emmet-for-html-a-beginners-guide?utm_source=hashnode&utm_medium=feed) Learn how Emmet can help you write HTML faster with shortcuts and abbreviations in this beginner-friendly guide 2 min read · [dineshahir.hashnode.dev](https://dineshahir.hashnode.dev/emmet-for-html-a-beginners-guide?utm_source=hashnode&utm_medium=feed) [Jan 31](https://hashnode.com/posts/emmet-for-html-a-beginners-guide/697e6ff81b2cdf0ea3fbd3e0) ### [Understanding HTML Tags and Elements](https://dineshahir.hashnode.dev/understanding-html-tags-and-elements?utm_source=hashnode&utm_medium=feed) Learn the essentials of HTML, including tags, elements, and their roles in structuring web pages for the browser to display content correctly 4 min read · [dineshahir.hashnode.dev](https://dineshahir.hashnode.dev/understanding-html-tags-and-elements?utm_source=hashnode&utm_medium=feed) [Jan 31](https://hashnode.com/posts/understanding-html-tags-and-elements/697e6a25e42fc5d160b2b353)