CSS - Selectors & Elements

Day 2 : CSS - Selectors & Elements

Niotechone Marketing Team
November 17, 2025
11:30 am

Introduction

Welcome back to your journey in CSS! In this tutorial, we will delve into one of the most powerful concepts in CSS: Selectors!

Think of CSS selectors as a GPS system for styling. Just like GPS helps you find specific locations, selectors help you target exactly which HTML elements you want to style. Want to style ALL paragraphs? There’s a selector for that. Want to style just ONE specific element? There’s a selector for that too! Want to style elements based on their state (like when you hover over them)? Yep, selectors can do that as well!

Why Are CSS Selectors Important?

Precision: You can target exactly what you want without affecting other elements in the process
Efficiency: You can write less code by grouping similar elements with just one selector
Interactivity: You can have a dynamic effect that can respond to a user interacting with the webpage
Professional Skills: Understanding selectors is foundational to any CSS type of work
Power: Selectors give CSS power and allow for more complex styling

In this tutorial, you will learn, master, and practice different selector types, when to use each selector type, and apply your knowledge to a mini project that stylizes buttons and links! By the end of this tutorial, you will have the ability to target anything on any webpage with surgical precision!

Understanding CSS Selectors: Your Targeting Toolkit

What is a Selector?

A selector is the section of a CSS rule that identifies the HTML element(s) you are styling. It asks the question “who gets this style?”

🎨

selector {
  property: value;
}

CSS has many different types of selectors which target in a variety of ways. Let’s dive into each!

Step-by-Step Tutorial

Step 1: Element Selectors (Type Selectors)

Element selectors identify all HTML elements of a specified type.

🎨

h2 {
  color: #2c3e50;
  font-size: 28px;
  font-weight: bold;
  margin-bottom: 20px;
}

/* Targets ALL <body> elements (usually just one) */
body {
  font-family: 'Arial', sans-serif;
  padding: 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

What does it mean?

The selector is just the name of the element (there are no special characters)
h2 targets every heading element on the page
body used to style the entirety of the page background and used to set default font
Element selectors have low specificity (they’re the weakest)

Pro Tip: Use element selectors when you want to establish a baseline style that affects each instance of the element (i.e. the body font, default link color, etc.).

Common Mistake: Element selectors will affect ALL instances of that element type. If you just want to style one specific paragraph, you need another type of selector!

Step 2: Class Selectors - Reusable Styles

Class selectors target elements with a class attribute associated with that element. Class selectors begin with a period (.).

HTML:

🌐

<a href="#" class="styled-link" target="_blank">Visit Site</a>
<button class="styled-button">Click Me</button>

CSS:

🎨

.styled-link {
  display: inline-block;
  padding: 12px 24px;
  background-color: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Targets elements with class="styled-button" */
.styled-button {
  padding: 12px 30px;
  background-color: #e74c3c;
  color: white;
  border: none;
  border-radius: 25px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}

Understanding Class Selectors:

HTML Side: Add class=”className” to any element
CSS Side: Use .className to target it
Reusability: Multiple elements can have the same class
Specificity: More powerful than element selectors

Note: You can specify multiple classes with one element: class=”styled-link important featured”

Pro Tip: Use class names that describe the intention or purpose, and not the styles (blue-button vs. btn-primary). Your button could be a different color later!

Step 3: ID Selectors - Unique Identifiers

ID selectors identify a specific and unique element. They begin with a hash (#).

HTML:

🌐

<div id="main-container">Content here</div>

CSS:

🎨

#main-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  background-color: white;
  border-radius: 12px;
}

Key Differences Between Classes and IDs:

Feature	Class (.className)	ID (#idName)
HTML Syntax	class=”name”	id=”name”
CSS Syntax	.name	#name
Reusability	Multiple elements can have it	Only ONE element should have it
Specificity	Medium	Very High
Best Use	Styling multiple similar elements	Unique sections or JavaScript hooks

The Most Important Rule: An ID should only be used ONCE per page. You can not use IDs to style several elements, instead use classes!

Pro Tip: A modern best practice is to use classes for all styling—ID’s should be reserved for JS functionality and page anchors.

Step 4: Universal Selector - Style Everything

The universal selector (*) targets ALL elements in the page.

🎨

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

When to Use:

Resetting default browser styling (known as “CSS Reset”)
Adding box-sizing universally
Adding properties to everything in the DOM

Warning: Use sparingly, the universal can cause performance to degrade on a larger page because it targets every single element

Note: box-sizing: border-box will allow width calculations easier by taking into account the padding and border in regards to total width.

Step 5: Grouping Selectors - DRY Principle

Grouping selectors is the methodology of using multiple selectors to get the same styles on a selector class. This follows the DRY guidelines (do not repeat yourself).

🎨

h1 {
  color: #2c3e50;
  font-family: 'Georgia', serif;
}

h2 {
  color: #2c3e50;
  font-family: 'Georgia', serif;
}
h3 {
  color: #2c3e50;
  font-family: 'Georgia', serif;
}
/* WITH Grouping (efficient) */
h1, h2, h3 {
  color: #2c3e50;
  font-family: 'Georgia', serif;
}
/* You can group any selectors */
.styled-link, .styled-button {
  transition: all 0.3s ease;  
font-weight: bold;
}

Grouping Rules:

Separate your selectors by commas
All the selectors are assigned the same style
You can still use each selector in CSS and add individual styles
Improves organization and reduces file size in your CSS.

Pro Tip: Grouped selectors should use as many common properties as they can—and pull separate css afterwards (so you have a well organized manageable file).

Step 6: Attribute Selectors - Advanced Targeting

Attribute selectors are used to target elements by their attributes and their values.

HTML:

🌐

<input type="text" placeholder="Type here..."> <a href="https://example.com" target="_blank">External Link</a>

CSS:

🎨

input[type="text"] {
  padding: 12px 15px;
  border: 2px solid #bdc3c7;
  border-radius: 8px;
  font-size: 16px;
  width: 300px;
  transition: border-color 0.3s ease;
}
/* Targets links with target="_blank" (external links) */
a[target="_blank"] {
  color: #e67e22;
}
/* Targets links whose href starts with "https" */
a[href^="https"] {
  color: green;
}
/* Targets links whose href ends with ".pdf" */
a[href$=".pdf"] {
  color: red;
}
/* Targets elements whose class contains "button" */
[class*="button"] {
  cursor: pointer;
}

Attribute Selector Patterns:

Selector	Meaning	Example
[attr]	Has the attribute	[disabled]
[attr=”value”]	Exact match	[type=”text”]
[attr^=”value”]	Starts with	[href^=”https”]
[attr$=”value”]	Ends with	[href$=”.pdf”]
[attr*=”value”]	Contains anywhere	[class*=”btn”]
[attr~=”value”]	Contains word in space-separated list	[class~=”active”]

Note: Attribute selectors are very powerful for targeting form elements or links by their attributes!

Step 7: Pseudo-Classes - Interactive States

Pseudo-classes are used to select elements by their state or position. Pseudo-classes use a colon (:) to start off.

7a. The :hover Pseudo-Class

Applies styles when the pointer is hovering over an element.

🎨

.styled-link:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.styled-button:hover {
  background-color: #c0392b;
  transform: scale(1.05);
  box-shadow: 0 6px 25px rgba(231, 76, 60, 0.6);
}

The hover effect applies:

Darker background color (a visual cue)
Slight increase in position or scaling (makes it feel alive)
Shadow increases (adds depth)
Smooth transition (This is due to the transition property we added earlier)

Pro Tip: be sure to add hover states to interactive elements (links, buttons, etc.) because it enhances user experience by showing what they click on!

7b. The :active Pseudo-Class

:active has styles applied when an element is being clicked (the moment of activation).

🎨

.styled-button:active {
  transform: scale(0.98);
  box-shadow: 0 2px 10px rgba(231, 76, 60, 0.3);
}
.styled-link:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

The active state happens:

A slight shrinkage of the button (makes it feel press down)
Shadow decreases (makes it feel pressed into the page)
Links reset their position
Makes the button feel like it has tactile feedback

Note: :active only applies for the brief moment you are clicking. The moment you release, you will return to the normal state or possibly :hover state.

7c. The :focus Pseudo-Class

:focus applies styles when an element is receiving focus (important for form inputs).

🎨

input[type="text"]:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
  background-color: #ecf9ff;
}

Focus Styling Provides:

Visual clue to signify which input field is active
Assists the user in understanding where they are typing
Very important for keyboard navigation
Enhances accessibility for all users

Accessibility Alert: If you remove the default outline, outline: none is used, you MUST provide an alternative focus (as we provided with border and shadow)!

7d. Other Useful Pseudo-Classes

🎨

a:visited {
  color: #9b59b6;
}
/* First child in a container */
li:first-child {
  font-weight: bold;
}
/* Last child in a container */
li:last-child {
  border-bottom: none;
}
/* Every nth element (useful for zebra striping) */
li:nth-child(odd) {
  background-color: #f8f9fa;
}
li:nth-child(even) {
  background-color: #e9ecef;
}
/* Elements that are disabled */
input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
/* Elements that are checked (checkboxes/radio buttons) */
input:checked {
  background-color: #27ae60;
}

Pro Tip: Pseudo-classes are great for creating interactive experiences without using JavaScript!

Complete Code Example: Mini Project

Now, let’s put together a mini project that ties together all of the concepts!

HTML (Save as index.html)

🌐

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>CSS Selectors Mini Project</title>
  <link rel="stylesheet" href="CSS_Selectors.css">
</head>
<body>
  <div id="container">
    <h2>Mini Project: Buttons and Links</h2>
    <p class="intro-text">Explore different CSS selectors and interactive states!</p>
    
    <div class="demo-section">
      <h3>Styled Link</h3>
      <a href="#" class="styled-link" target="_blank">Visit Site</a>
    </div>
    
    <div class="demo-section">
      <h3>Styled Button</h3>
      <button class="styled-button">Click Me</button>
    </div>    
    <div class="demo-section">
      <h3>Text Input</h3>
      <input type="text" placeholder="Type here...">
    </div>
  </div>
</body>
</html>

CSS (Save as CSS_Selectors.css):

🎨

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Element Selector - Body */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  padding: 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ID Selector - Main Container */
#container {
  background-color: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 600px;
  width: 100%;
}

/* Element Selector - Headings */
h2 {
  color: #2c3e50;
  font-size: 32px;
  margin-bottom: 10px;
  text-align: center;
}

h3 {
  color: #34495e;
  font-size: 18px;
  margin-bottom: 12px;
  font-weight: 600;
}
/* Class Selector - Intro Text */
.intro-text {
  text-align: center;
  color: #7f8c8d;
  margin-bottom: 30px;
  font-size: 16px;
}

/* Class Selector - Demo Sections */
.demo-section {
  margin-bottom: 30px;
  padding: 20px;
  background-color: #f8f9fa;
  border-radius: 12px;
  border-left: 4px solid #3498db;
}
/* Class Selector - Styled Link (Default State) */

.styled-link {
  display: inline-block;
  padding: 12px 24px;
  background-color: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

* Pseudo-class - Link Hover State */

.styled-link:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}
/* Pseudo-class - Link Active State */
.styled-link:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
/* Class Selector - Styled Button (Default State) */
.styled-button {
  padding: 12px 30px;
  background-color: #e74c3c;
  color: white;
  border: none;
  border-radius: 25px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}
/* Pseudo-class - Button Hover State */
.styled-button:hover {
  background-color: #c0392b;
  transform: scale(1.05);
  box-shadow: 0 6px 25px rgba(231, 76, 60, 0.6);
}
/* Pseudo-class - Button Active State */
.styled-button:active {
  transform: scale(0.98);
  box-shadow: 0 2px 10px rgba(231, 76, 60, 0.3);
}
/* Attribute Selector - Text Input (Default State) */
input[type="text"] {
  padding: 12px 15px;
  border: 2px solid #bdc3c7;
  border-radius: 8px;
  font-size: 16px;
  width: 100%;
  transition: all 0.3s ease;
  font-family: inherit;
}
/* Pseudo-class - Input Focus State */
input[type="text"]:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
  background-color: #ecf9ff;
}
/* Pseudo-class - Input Placeholder */
input[type="text"]::placeholder {
  color: #95a5a6;
  font-style: italic;
}
/* Grouping Selector - Common Styles for Interactive Elements */
.styled-link, .styled-button {
  font-family: inherit;
  letter-spacing: 0.5px;
}
/* Responsive Design - Mobile Optimization */
@media (max-width: 600px) {
  body {
    padding: 20px;
 }  
  #container {“
    padding: 25px;
  }  
  h2 {
    font-size: 24px;
  }  
  .styled-link, .styled-button {
    width: 100%;
    text-align: center;
 }
}

Mini Project Output:

Code Explanation: How Everything Connects

The Selector Specificity Hierarchy

CSS relies on specificity to determine which styles should apply to an element with multiple rules targeting the same element class. Specificity is ranked from highest to lowest as follows:

Specificity Ranking: Highest to Lowest

Inline styles (style=”…”): Specificity is 1000
ID selectors (#id): Specificity is 100
Class selectors (.class), attribute selectors, pseudo-classes: Specificity is 10
Element selectors (div, p, a): Specificity is 1
Universal selector (*): Specificity is 0

Example:

🎨

/* Specificity: 1 */
a {
  color: black;
}

/* Specificity: 10 */
.styled-link {
  color: blue;
}

/* Specificity: 100 */
#special-link {
  color: red;
}

/* Specificity: 11 (class + pseudo-class) */
.styled-link:hover {
  color: green;
}

In the example of an <a> element with class=”styled-link and id=”special-link, if the styles for both provide a color definition, the <a> element will be red because the ID provides higher specificity.

Pro Tip: Don’t use IDs when they can be avoided – classes are much more manageable and flexible and allow for easier changes later!

Understanding the Cascade

When you have multiple rules that are ranked the same for specificity, CSS offers the following tiebreakers:

Source Order: Because CSS is read top-down, a rule that is lower in the stylesheet overrides a rule higher up in the style sheet.
!important: Forces a style to override everything! Use only when necessary!

🎨

/* First rule */
.styled-button {
  background-color: blue;
}

/* Second rule - this wins! */
.styled-button {
  background-color: red;
}

In the example of the button, the button is red because the second rule comes later in the style sheet.

Why Transitions Work Across States

Notice we added transition to the default state, not the hover state:

🎨

.styled-link {
  transition: all 0.3s ease; /* Defined here */
}

.styled-link:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  /* No transition needed here! */
}

Why?

Because transition will apply to all property changes
It doesn’t just work on entering changes but also exiting the :hover state
This creates smooth animations for moving both directions

If we only put transition in :hover it would animate while hovering, but snap back instantly!

Attribute Selectors vs. Classes

When to use attribute selectors:

🎨

input[type="text"] { }  /* For form inputs */

a[target="_blank"] { }  /* For external links */

img[alt] { }            /* Images with alt text */

When to use classes:

🎨

.styled-button { }      /* Reusable component */

.error-message { }      /* Specific styling purpose */

.active { }             /* State indicator */

Tables of Key Concepts

1. Components / Keywords Used

Name	Description
*	Universal selector targeting all elements
element	Element/type selector targeting specific HTML tags
.className	Class selector targeting elements with specific class
#idName	ID selector targeting element with unique ID
[attribute]	Attribute selector targeting elements with specific attributes
[attribute=”value”]	Attribute selector with exact value match
[attribute^=”value”]	Attribute selector for values starting with string
[attribute$=”value”]	Attribute selector for values ending with string
[attribute*=”value”]	Attribute selector for values containing string
:hover	Pseudo-class for mouse hover state
:active	Pseudo-class for click/activation moment
:focus	Pseudo-class for focused/selected state
:visited	Pseudo-class for visited links
:first-child	Pseudo-class for first child element
:last-child	Pseudo-class for last child element
:nth-child()	Pseudo-class for nth child element
::placeholder	Pseudo-element for input placeholder text
, (comma)	Grouping operator for applying same styles to multiple selectors
transition	Property for smooth animations between states
transform	Property for moving, scaling, or rotating elements
box-shadow	Property for creating shadow effects
@media	At-rule for responsive design queries

2. Key Properties / Parameters / Features

Name	Description
display	Controls how element is rendered (block, inline, inline-block, flex)
inline-block	Display value allowing width/height on inline elements
padding	Space inside element between content and border
margin	Space outside element creating gaps between elements
border	Edge of element with width, style, and color
border-radius	Rounds corners of elements
border-left	Styles only left border (also: top, right, bottom)
background-color	Sets background color of element
color	Sets text color
font-size	Controls text size
font-weight	Controls text thickness (normal, bold, 100-900)
font-family	Specifies typeface/font to use
text-align	Aligns text (left, center, right, justify)
text-decoration	Controls text underlines, overlines, strikethroughs
cursor	Changes cursor appearance (pointer, not-allowed, etc.)
outline	Border-like outline that doesn’t affect layout
box-shadow	Creates shadow with x-offset, y-offset, blur, spread, and color
transition	Defines smooth animations: property duration timing-function
transform	Applies 2D/3D transformations (translate, scale, rotate)
translateY()	Transform function moving elements vertically
scale()	Transform function resizing elements
letter-spacing	Space between characters
max-width	Maximum width constraint
width	Element width (can use %, px, em, rem)
min-height	Minimum height constraint
justify-content	Flexbox property for horizontal alignment
align-items	Flexbox property for vertical alignment
ease	Timing function for natural-feeling transitions
inherit	Value that inherits property from parent element
rgba()	Color format with red, green, blue, alpha (transparency)

Your CSS Selector Arsenal

You have everything you’ll need now to target any element:

Need	Use This Selector
Style all paragraphs	p { }
Style specific elements	.myClass { }
Style unique element	#myId { }
Style all text inputs	input[type=”text”] { }
Style external links	a[target=”_blank”] { }
Add hover effect	.element:hover { }
Style when clicked	.element:active { }
Style when focused	.element:focus { }
Style multiple elements	.class1, .class2 { }
Reset all elements	* { }

Useful References

Official Documentation & Standards

MDN Web Docs – CSS Selectors – Comprehensive selector reference
W3C CSS Selectors Level 3 – Official CSS selector specification
MDN – Pseudo-classes – Complete pseudo-class documentation
MDN – Pseudo-elements – Understanding ::before, ::after, etc.

Learning Platforms & Tutorials

W3Schools CSS Selectors – Beginner-friendly selector guide
CSS-Tricks – CSS Selectors – Practical examples and use cases
freeCodeCamp CSS Course – Free interactive lessons
Codecademy – Learn CSS – Structured interactive course

Selector Tools & Games

CSS Diner – 🎮 Fun game to practice CSS selectors (HIGHLY RECOMMENDED!)
CSS Selector Tester – Test selectors in real-time
Specificity Calculator – Visual specificity tool
CSS Specificity Graph Generator – Analyze your stylesheet

Interactive & Visual Guides

CSS Selectors Cheat Sheet – Quick reference poster
30 CSS Selectors You Must Memorize – Essential selectors
CSS Selectors Explained – Visual explanations

Pseudo-Classes & Advanced Selectors

MDN – :hover – Hover state documentation
MDN – :focus – Focus state and accessibility
MDN – :nth-child() – Pattern matching
CSS :not() Selector – Negation pseudo-class

Specificity & Cascade

CSS Specificity – Understanding the cascade
CSS Specificity Wars – Fun Star Wars themed guide
The Cascade – How CSS decides which styles apply

Attribute Selectors

MDN – Attribute Selectors – Complete attribute selector guide
CSS Attribute Selector Examples – Practical examples

Best Practices & Methodology

BEM Methodology – CSS naming convention system
CSS Guidelines – High-level advice and guidelines
Maintainable CSS – Writing modular, scalable CSS

Browser Compatibility

Can I Use – CSS Selectors – Check browser support
CSS Support Guide – What CSS properties trigger layout/paint

Practice & Challenges

Frontend Mentor – Real-world design projects
CSSBattle – CSS coding challenges
Codepen Challenges – Weekly CSS challenges
100 Days CSS Challenge – Daily CSS mini-projects

Advanced Topics

CSS Combinators – Descendant, child, sibling selectors
CSS Level 4 Selectors – Future selector features
CSS :has() Selector – Parent selector (new!)

Video Tutorials

Kevin Powell – CSS – Expert CSS tips and tricks
Web Dev Simplified – CSS Selectors – Clear explanations
Traversy Media – CSS Crash Course – Comprehensive overview

Books

CSS: The Definitive Guide – Deep dive reference
CSS Secrets – Advanced techniques

Communities

CSS Subreddit – Ask questions and share work
Stack Overflow – CSS Tag – Get specific help
CSS-Tricks Forums – Friendly community

Design Inspiration

Dribbble – Design inspiration
CodePen – CSS demos and experiments
Awwwards – Award-winning web design

Source Code:

https://github.com/niotechoneSoftware/dotnet-developer-roadmap/tree/main/CSS-Fundamentals/Day%202%20-%20CSS%20-%20Selectors%20%26%20Elements

Summary – What You Learned

You will be learning how CSS Selectors and Elements work together to style a web page! CSS selectors are patterns that are used to find HTML elements that are specific for which you will input colors, spacing, fonts, and layout. The most common selectors are the element selectors which are the basic tag like h1 or p, class selectors which are styles that can be reused by multiple elements, and ID selectors which are unique to one element only.

Output

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Frequently Asked Questions FAQs

What is a CSS selector?

A CSS selector is a pattern used to select the HTML elements you want to style. It tells the browser which element(s) the CSS rules should apply to.

What are the basic types of CSS selectors?

The most common selectors include:

Element Selector (p, h1, div)
Class Selector (.container, .btn)
ID Selector (#header, #main-title)
Universal Selector (*)
Group Selector (h1, h2, p)

Why are selectors important in CSS?

Selectors allow you to precisely target elements and apply styles efficiently. Mastering them ensures clean, scalable, and maintainable CSS code.

What is selector specificity?

Specificity determines which CSS rule wins when multiple rules target the same element.
Specificity order (highest → lowest):

Inline styles
IDs
Classes, attributes, pseudo-classes
Elements, pseudo-elements

What should I learn next after CSS selectors?

You can continue with:

CSS Box Model
CSS Display & Positioning
Flexbox & Grid
Responsive CSS
CSS Animations

These concepts help you build modern, responsive, and visually appealing layouts.

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Let’s Discuss – Requirements

Let’s Discuss – Requirements

Let’s Discuss – Requirements

Day 2 : CSS - Selectors & Elements

Table of Contents

Introduction

Why Are CSS Selectors Important?

Understanding CSS Selectors: Your Targeting Toolkit

Step-by-Step Tutorial

Step 1: Element Selectors (Type Selectors)

Step 2: Class Selectors - Reusable Styles

Step 3: ID Selectors - Unique Identifiers

Step 4: Universal Selector - Style Everything

Step 5: Grouping Selectors - DRY Principle

Step 6: Attribute Selectors - Advanced Targeting

Step 7: Pseudo-Classes - Interactive States

Complete Code Example: Mini Project

Code Explanation: How Everything Connects

Why Transitions Work Across States

Tables of Key Concepts

Useful References

Summary – What You Learned

Output

Categories

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