CSS

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CSS stands for Cascading Style Sheets. It is the standard language used to design, style, and lay out web pages created with HTML.

While HTML defines the structure and content of a webpage (text, images, buttons), CSS controls the presentation (colors, fonts, spacing, layout, and animations).

/* Selector targeting all <h1> elements */
h1 {
  color: #2563eb;        /* Property: Value; */
  font-size: 32px;
  text-align: center;
}

Selector: Points to the HTML element you want to style (e.g., h1, .button, #header).
Property: The style attribute you want to change (e.g., color, margin, font-size).
Value: The setting applied to that property (e.g., red, 16px, center).

There are three ways to apply CSS:

External CSS (Recommended): Linked via an external file.
html <link rel="stylesheet" href="styles.css">
Internal CSS: Written inside a <style> tag in the <head> of an HTML document.
```html

3. **Inline CSS:** Applied directly inside an HTML tag (used sparingly).html

```

The Box Model: Every element in CSS is treated as a rectangular box consisting of:
Content: The actual text or image.
Padding: Space directly around the content.
Border: A border wrapping the padding and content.
Margin: Space outside the border, separating the element from others.
Layout Systems:
Flexbox (1D): Perfect for arranging items in a single row or column (navigation bars, aligning buttons).
CSS Grid (2D): Perfect for complex, two-dimensional grid layouts (entire page structures, galleries).
Responsive Design: Using Media Queries to adapt layouts for mobile, tablet, and desktop screens:
css @media (max-width: 768px) { .sidebar { display: none; /* Hide sidebar on mobile */ } }

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