Learn core CSS principles, explore layout creation, and refine skills in typography and styling.

Web Page Styling—CSS

In this module, we’ll introduce you to the essentials of CSS. We’ll learn about core concepts such as the cascade and inheritance. We’ll cover various CSS units and dive into fundamental principles like the box model, margins, padding, and fonts. We’ll also teach you about flexible layouts using display properties and CSS positioning techniques. Additionally, you’ll explore backgrounds, colors, images, and practical examples to solidify your understanding. By the end of this module, you will be able to confidently create well-structured web pages.

Getting Started with CSS

# RGB colors
We can use the `rgb()` functional notation to calculate the `color` from its RGB notation as an alternative to hex colors.

We use a list of three numeric values ranging from `0` to `255`. The first is our `red` value, the next is our `green` value, and the last is our `blue` value.


For example:

```css
color: rgb(255, 255, 255);  /* white */
color: rgb(0, 0, 0);        /* black */
color: rgb(255, 0, 0);      /* red */
color: rgb(34, 139, 34);    /* forest green*/
```

We can use the `rgba()` **functional notation** to adjust the opacity. With RGBA, we add a fourth value. The value is a number ranging from `0` (completely transparent) to `1` (completely opaque).

For example:

```css
p {
  color: rgba(0, 255, 255, .5);
}
```
# Example


Getting Started with CSS

CSS Core Concepts

CSS Units

CSS Fundamentals

Unlocking Flexible Layouts with CSS Display

CSS Positioning

Typography in CSS

Backgrounds and Colors

Images and Floats in CSS

Conclusion

RGB colors