Introduction to Web Technologies | Web Technologies - EmiratesSkills

EmiratesSkills - Web Technologies

15 Aug 202529:01

Summary

TLDRThis video introduces viewers to web technologies, focusing on front-end development using HTML. It explains how websites work, from typing a URL to the browser rendering HTML, CSS, and JavaScript files. Viewers are guided step-by-step to set up VS Code and create their first web page, learning essential HTML elements including headings, paragraphs, links, images, lists, and text formatting. The tutorial also covers creating a basic personal portfolio website with sections for a bio, skills, contact info, and projects, while introducing helpful tools like the Live Server extension. No prior experience is needed, making it ideal for beginners eager to start coding.

Takeaways

😀 Web technologies are tools and languages used to build websites, which are divided into front-end (what you see) and back-end (data management).
😀 The web works by typing a URL in your browser, which sends a request to a web server that responds with HTML, CSS, and JavaScript files to render a webpage.
😀 HTML (Hypertext Markup Language) is the foundation of web pages, structuring content using elements like headings, paragraphs, images, and links.
😀 Front-end development focuses on what users see, with HTML being the core technology for structuring content.
😀 Key HTML tags include the `<!DOCTYPE html>` declaration, `<html>`, `<head>`, `<body>`, headings (`<h1>` to `<h6>`), paragraphs (`<p>`), and links (`<a>`).
😀 Self-closing tags like `<img>` don't require closing tags, and attributes such as `src` and `alt` are used for images in HTML.
😀 You can use the Live Server extension in VS Code for real-time browser updates, making it easier to see changes as you code.
😀 Lists in HTML come in two types: unordered lists (`<ul>`) for bullet points and ordered lists (`<ol>`) for numbered items.
😀 HTML can be used to apply basic text formatting such as bold (`<b>`), italic (`<i>`), and underline (`<u>`).
😀 Building a simple website involves creating HTML files, linking them together, and using elements like headings, paragraphs, links, images, and lists to create a personal portfolio.

Q & A

What are web technologies and why are they important?
-Web technologies are tools and languages used to build websites. They are important because they define both the structure and functionality of web pages, allowing users to interact with content online.
What is the difference between front-end and back-end development?
-Front-end development deals with everything users see on a website, like layout, text, buttons, and images. Back-end development handles data storage, server logic, and providing information to the front-end.
What happens when you type a URL into a browser?
-When you type a URL, the browser sends a request to a web server, which responds with files like HTML, CSS, and JavaScript. The browser then interprets these files to display the webpage.
What is HTML and what role does it play in web development?
-HTML (Hypertext Markup Language) is used to create the structure of web pages. It defines headings, paragraphs, links, images, and other content, acting as the foundation for front-end development.
What are some common HTML tags and their purposes?
-Common HTML tags include headings (<h1>–<h6>) for titles, <p> for paragraphs, <a> for links, <img> for images, <ul>/<ol> for lists, and <b>, <i>, <u> for bold, italic, and underlined text, respectively.
How can you link one HTML page to another?
-You can link pages using the anchor tag <a> with the href attribute pointing to the target page's file name. For example, <a href='index.html'>Link</a> connects to index.html.
What is the purpose of the Live Server extension in VS Code?
-The Live Server extension automatically reloads the browser every time you save changes in your HTML file, allowing instant preview of edits without manually refreshing.
How do you create a list in HTML, and what is the difference between ordered and unordered lists?
-Lists are created using <ul> for unordered (bullet points) and <ol> for ordered (numbered) lists. List items are placed inside <li> tags.
How do you properly include an image in HTML, and what is the role of the alt attribute?
-Use the <img> tag with the src attribute pointing to the image file and alt providing alternative text. The alt text displays if the image fails to load and helps with accessibility.
What are the key steps to create a basic personal portfolio webpage?
-Key steps include: creating an HTML file, adding a proper HTML structure (doctype, html, head, body), using headings and paragraphs for content, adding links and lists for skills/projects, and optionally including images and email links.
Why is proper indentation and organization important in HTML code?
-Indentation improves readability and organization of the code for developers. Although browsers ignore spaces and tabs, clean code helps prevent errors and makes maintenance easier.
What is the purpose of the <head> section in an HTML document?
-The <head> section contains meta information about the page, such as the title, links to stylesheets or scripts, and other data not directly displayed on the webpage but essential for browsers and search engines.