CSS Selectors, Colors, and Fonts Easy Guide

What is CSS ?

CSS ka full form hai Cascading Style Sheets. Ye HTML elements ko style dene ka kaam karta hai – jaise ki color, font, size, layout wagaira.

Chaliye ab samajhte hain CSS ke 3 important parts:

1. Selectors
2. Colors
3. Fonts

What are CSS Selectors?

Selectors bataate hain ki aap kaunse HTML element ko style karna chahte ho.

Types of Selectors

1. Universal Selector (*)

Sabhi elements pe ek saath style apply karta hai.

Example:

* {
margin: 0;
padding: 0;
}

2. Element Selector (h1, p, div etc.)

Specific tag ko style karta hai.

Example:

h1 {
color: red;
}

3. Class Selector (.class-name)

Jis element mein wo class ho, usko style karta hai.

Example:

.box {
background-color: lightblue;
}

4. ID Selector (#id-name)

Ek unique element ko style karta hai.

Example:

#header {
font-size: 24px;
}

5. Group Selector (h1, p)

Ek hi style multiple elements ko dena ho to use hota hai.

Example:

h1, p {
text-align: center;
}

6. Descendant Selector (div p)

div ke andar wale p tag ko target karta hai.

Example:

div p {
color: green;
}

CSS Colors – Make It Vibrant

CSS mein aap alag-alag tarike se color define kar sakte ho.

Color Use Karne Ke 4 Tarike

1. Color Name

Example:

h1 {
color: blue;
}

2. HEX Code

Example:

p {
color: #ff5733;       /* orange-red jaisa color */
}

3. RGB / RGBA

Example:

div {
background-color: rgb(255, 0, 0);           /* red */
}
section {
background-color: rgba(0, 255, 0, 0.5);              /* green with 50% transparency */
}

4. HSL / HSLA

Example:

body {
color: hsl(200, 100%, 50%);
}

CSS Fonts – Style Your Text

Text ka font website ki feel aur readability dono pe effect daalta hai.

Font Styling ke Important Properties:

1. Font-Family

Example:

body {
font-family: ‘Arial’, sans-serif;
}

Fallback fonts ka use karo taaki agar pehla load na ho to doosra ho jaye.

2. Font-Size

Example:

h2 {
font-size: 28px;
}

3. Font-Weight

Example:

p {
font-weight: bold; /* ya 400, 700 jaisa number bhi chalega */
}

4. Font-Style

Example:

em {
font-style: italic;
}

5. Text Transform

h1 {
text-transform: uppercase;
}

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