HTML tags, elements, and attributes are important building blocks in creating websites.

The content of an HTML document consists of several different pieces, such as images, various texts, styles, scripts, lists, tables, etc. These pieces are called HTML elements. And HTML elements are created in HTML code using HTML tags.

The HTML tag begins and ends an HTML element. An HTML element can contain text, other HTML tags, or other elements. For example, the following code creates a header element using the header tag, 

HTML attributes are keywords that define the properties of HTML elements. Attributes are defined within HTML elements and are often used to specify information about the element. For example, the <img> tag uses the src attribute to define the URL of an image. The following code displays an <img> tag that uses the src attribute.

HTML elements and attributes can also be combined to specify the content and appearance of an element. For example, the following code contains an 

 tag that creates a hyperlink to a URL and uses the 

 attribute to display the text when the mouse cursor is hovering over it:

HTML tags, elements, and attributes are important building blocks in creating websites.

## HTML Elements

The content of an HTML document consists of several different pieces, such as images, various texts, styles, scripts, lists, tables, etc. These pieces are called HTML elements. And HTML elements are created in HTML code using HTML tags.

---

## HTML tags

The HTML tag begins and ends an HTML element. An HTML element can contain text, other HTML tags, or other elements. For example, the following code creates a header element using the header tag, **<h1>**, which starts the header and **</h1>** which ends it:

```html
<h1>This is the title</h1>
```

@embed 46e894db1cdf

---

## HTML attributes

HTML attributes are keywords that define the properties of HTML elements. Attributes are defined within HTML elements and are often used to specify information about the element. For example, the <img> tag uses the src attribute to define the URL of an image. The following code displays an <img> tag that uses the src attribute.

```html
<img src="kuva.jpg" alt="Caption">
```

@embed e94398d28e71

---

## Both is better!

HTML elements and attributes can also be combined to specify the content and appearance of an element. For example, the following code contains an **<a>** tag that creates a hyperlink to a URL and uses the **title** attribute to display the text when the mouse cursor is hovering over it:

```html
<a href="https://www.hakatemia.fi" title="Go to Hakatemia">Hackathemia</a>
```

@embed fdaf79c0d0fa


HTML Tags, Elements and Attributes

This course is an introduction to web development and focuses on the basics of HTML, CSS, JavaScript and backend systems. The aim of the course is to provide students with the necessary skills and knowledge to design, develop and understand simple web applications.

This course is an introduction to web development and focuses on the basics of building websites, namely HTML, CSS, JavaScript, and fundamentals of backend systems. The goal of the course is to provide you with the necessary skills and knowledge to design and develop simple full-stack web applications, as well as understand web applications made by others.

In the first part, HTML is studied, which is a markup language used in building websites.


The second part covers the basics of CSS, such as the use of style sheets, rules, selectors, and formatting. It also covers advanced features of CSS, such as animations and responsive design.

In the third part, we will study JavaScript, which is currently an incredibly important tool in both frontend and backend development, and thus also in cybersecurity and ethical hacking.

In the final part, we will learn how to build back-end systems using the Python Flask framework. You will learn the basics of back-end systems, such as using databases, authentication, session management, and access control.

You can do the course exercises on your own computer if you want, but each code example has a button that allows you to directly run the code in the browser and see what the page looks like or what the script prints. So you do not need to install anything, but you can if you want.

It is recommended but optional to create an account on replit.com service. In that case, you can just click "Fork" on the code examples to make a copy for yourself to play with

HTML Tags, Elements and Attributes

HTML Elements

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