Python Tutorials 6: Introduction to Web Development: HTML CSS and JavaScript
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Diving Into Web Development with Python: A Fun and Easy Journey
Hello friends! We have talked about basic data types, variables, conditionals, loops, functions, lists, dictionaries, file operations and object-oriented programming in Python. Now we are ready to take all of this knowledge one step further and dive into the world of web development ! Web development is the art and science of creating interactive websites and applications. The knowledge we gain in Python will give us a great advantage in our web development journey. Because Python powers popular frameworks used to develop web applications (such as Django and Flask). However, we also need to learn the languages that form the basis of websites. These are HTML, CSS and JavaScript.HTML: The Language That Forms the Foundation of Web Pages
HTML (HyperText Markup Language) is the language that defines the structure of web pages. HTML is used to organize text, images, videos and other types of content. Using HTML codes, we can create headings, paragraphs, lists, tables, links and many other elements on web pages. For example, to display the text "Hello World!" in HTML, we use the following code: ```html
Hello world!
``` This code creates a web page titled "Hello World!". `The ` tag causes the text "Hello World!" to be displayed as a title.
CSS: The Style Language That Determines the Appearance of Web Pages
CSS (Cascading Style Sheets) is used to control the appearance of web pages. Using CSS we can set font color size position background and many other properties. CSS is used to apply style to HTML elements. For example, ` in HTMLTo apply red color and a larger font size to the ` tag, we can use the following CSS code: ```css h1 { color: red; font-size: 3em; } ``` This CSS code applies to all `
Causes ` elements to be red and 3em (em refers to the font size).
JavaScript: The Dynamic Language That Brings Web Pages to Life
JavaScript is a dynamic programming language that adds interactivity to web pages. JavaScript can update web pages based on user interaction, create animations, perform data validation, and provide many other functions. For example, to display a message when a button is clicked, we can use the following JavaScript code: ```javascript ``` This code creates a button that says "Click!" When the button is clicked, the message "Hello World!" is displayed in an alert box.
Getting Started with Web Development: Applying What We've Learned from Python
We can use the programming skills we gain in Python in web development by learning HTML, CSS, and JavaScript. Python powers popular frameworks used to develop web applications (such as Django and Flask). These frameworks work with HTML, CSS, and JavaScript to create interactive and dynamic web applications.
