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CSS Full Course – 2025 Beginner

Posted on by Karishma
CSS Full Course – 2025 Beginner

CSS Full Course – In this complete guide, you will learn how to use CSS to style websites with confidence.

Introduction to CSS

CSS stands for Cascading Style Sheets. It is the language used to style and design web pages. While HTML is used to create the structure of a webpage, CSS is used to control how that structure looks — including layout, colors, fonts, spacing, and more.

With CSS, you can make your website visually appealing and user-friendly by applying styles to individual elements or entire sections.

**CSS Full Course – 2025 Beginner**: Welcome to the most comprehensive and beginner-friendly CSS full course. In this guide, you’ll learn how to style websites using modern CSS properties, selectors, layouts, and best practices. Whether you’re starting from zero or brushing up your skills, this CSS Full Course has everything you need to become confident in web styling.

 Learn CSS Basics in This CSS Full Course

CSS (Cascading Style Sheets) is the language used to style and design web pages. In this CSS full course, you’ll begin by learning how to apply colors, set layouts, and control fonts using simple CSS properties. This section is perfect for beginners who want to build a strong foundation in web design.

What is CSS?

CSS is the language we use to style a Web page.

  • CSS stands for Cascading Style Sheets
  • CSS describes how HTML elements are to be displayed on screen, paper, or in other media
  • CSS saves a lot of work. It can control the layout of multiple web pages all at once
  • External stylesheets are stored in CSS files

File:CSS3 logo and wordmark.svg - Wikipedia

Why Use CSS?

CSS is used to define styles for your web pages, including the design, layout and variations in display for different devices and screen sizes. This CSS full course will guide you step by step.

For Example

<!DOCTYPE html>
<html>
<head>
<style>
body {
background-color: white;
}

h1 {
color: black;
text-align: center;
}

p {
font-family: verdana;
font-size: 20px;
}
</style>
</head>
<body>

<h1>My First CSS Example</h1>
<p>This is a paragraph.</p>

</body>
</html>

Output

My First CSS Example

This is a paragraph.

CSS Syntax

This section introduces you to basic CSS concepts such as syntax, selectors, colors, and how to connect your CSS with HTML. As part of this CSS Full Course, you’ll get practical tips and examples to learn faster.

CSS syntax

The selector points to the HTML element you want to style.

The declaration block contains one or more declarations separated by semicolons.

Each declaration includes a CSS property name and a value, separated by a colon.

Multiple CSS declarations are separated with semicolons, and declaration blocks are surrounded by curly braces. This CSS full course will guide you step by step

Type of CSS

There are three main of CSS. This CSS full course will guide you step by step of type of CSS

An In-Depth Exploration of HTML5 and CSS: Types of CSS with Examples | by Code with Suraj | Medium
1. Inline CSS

  • CSS is written directly inside the HTML element using the style attribute.

  • It applies to only that specific element.

🔹 Example:

html
<h1 style=”font-color:navy”>Scientech Easy</h1>
image of inline css

 2. Internal CSS

  • CSS is written inside a <style> tag within the <head> section of the HTML document.

  • It applies to the entire HTML page.

🔹 Example:

html
<!DOCTYPE html>
<html>
<head>
<style>
p {
color: blue;
font-size: 20px;
}
</style>
</head>
<body>
<p>This is internal CSS</p>
</body>
</html>

 

 3. External CSS

  • CSS is written in a separate file with a .css extension.

  • That file is linked to the HTML document using the <link> tag.

  • It can be used for multiple HTML pages, making it ideal for large websites.

 Example:

style.css:
css
p {
color: green;
font-size: 22px;
}
index.html:
html
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
</head>
<body>
<p>This is external CSS</p>
</body>
</html>

Example of CSS types by Image

Example 1.
Using Internal CSS in HTML: Tips, Tricks, and Examples
Example 2.
CSS Styles

Rule of CSS

these are the Five main parts of a rule in CSS. This CSS full course will guide you step by step rule of CSS

1. Selector

  • What it means: The Selector tells CSS which HTML element(s) to style.

  • It “selects” the element you want to apply styles to.

 Example:

css
h1 {
color: red;
}

Here, h1 is the selector. It means: “Apply the styles to all <h1> headings”.

2. Property

  • What it means: The Property defines what style you want to apply.

  • It could be things like color, font-size, margin, padding, etc.

 Example:

css
h1 {
color: red;
}

Here, color is the property. It tells CSS you want to change the text color.

 3. Value

  • What it means: The Value is the setting you give to a property.

  • It tells how to apply the style — like red, 16px, center, etc.

 Example:

css
h1 {
color: red;
}

Here, red is the value of the color property.

4. Declaration

What it means: A declaration is a combination of a property and its value, separated by a colon (:) and ending with a semicolon (;).

Example:

css
color: red;

This is a single declaration.

5. Declaration Block

What it means: The declaration block is the part of the rule inside curly braces { }. It can contain one or more declarations.

Example:

css
{
color: red;
font-size: 18px;
}

This is the declaration block with two declarations.

CSS Syntax to Write CSS Rules - Scientech Easy

CSS Rule Summary:

  1. Selector – Selects the HTML element to style.
    Example:h1 targets all <h1> tags.

  2. Property – Defines what you want to style (like color, size, margin).
    Example: color

  3. Value – Gives the specific setting to the property.
    Example: red

  4. Declaration – A single line of property and value.
    Example: color: red;

  5. Declaration Block – Group of declarations inside { }.
    Example: { color: red; font-size: 18px; }

    CSS Rule

    Complete instruction with selector + declaration block.

    Example:

    css

    h1 {
    color: red;
    font-size: 18px;
    }
    Learn the HTML Full Course basic to advance click here
    For more related references click here