Summary  
This chapter explains CSS font properties—font-family, font-size, font-weight, and font-style—for controlling text appearance. It also covers the ::first-letter pseudo-class for applying decorative styling to the first character of an element.

General domain of usage  
Web page typography

Watch this video to see how different CSS font properties—such as font-family, font-size, font-weight, and font-style—change the appearance of text on a web page. You'll also learn how the ::first-letter pseudo-class can be used for decorative effects. Use simple css examples. Do not provide full html document stucture. Focus on css mainly

Fonts strongly influence the tone and readability of a web page.
In this chapter, we explore the most commonly used font-related CSS properties: `font-family`, `font-size`, `font-weight`, and `font-style`.


All examples use the same text to show how these properties change appearance.

Note

## font-family
The `font-family` property defines which typeface is used to display text.
```css
p {
  font-family: 'Montserrat', Arial, sans-serif;
}
```
Multiple fonts can be listed as fallbacks, separated by commas. If the first font is not available, the browser uses the next one in the list. It is recommended to always include a generic fallback such as: `serif`, `sans-serif`, `monospace`.

## font-size
The `font-size` property controls how large text appears.
```css
p {
  font-size: 16px;
}
```
Common units: 
- `px`: fixed size;
- `em`: relative to parent element;
- `rem`: relative to root element.

## font-weight
Controls the thickness of text. Numeric values: `100–900`. Keywords: `normal`, `bold`, `lighter`.

## font-style
Specifies the style of the text: `normal`, `italic`, or `oblique`.

## Pseudo-class ::first-letter
`::first-letter` targets the first letter of an element (typically a paragraph or heading), allowing decorative or stylized effects.
```css
selector::first-letter {
 /* some styles */
}
```
Let's run the next example to see how it works.

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`font-family` defines the typeface and fallbacks.

`font-size` controls text size in px, em, or rem.

`font-weight` adjusts thickness using numbers or keywords.

`font-style` changes the font style.

`::first-letter` styles the first letter of a text block.

Summery

Which property determines the thickness of the font?

What is the default value for the `font-style` property in CSS?

Behärska grunderna i CSS, det stiliseringsspråk som förändrar utseendet och känslan på webbsidor. Utforska centrala koncept såsom textstilar, färger, avstånd, boxmodellen, Flexbox och dekorativa effekter. Bygg upp färdigheter för att skapa visuellt tilltalande och välstrukturerade webbsidor.

Förstå hur CSS kopplas till HTML och hur stilar tillämpas genom selektorer.
Tillämpning av färger, textformatering och hovringseffekter för att styra visuell presentation.

Förbättra typografi med hjälp av radavstånd, mellanrum, typsnittsegenskaper och anpassade typsnitt. Kontrollera typsnittsfamiljer, vikt, stil och storlek för ökad läsbarhet.

Styr layoutstruktur med hjälp av marginaler, utfyllnad, ramar och bredd-egenskaper. Förstå boxmodellens storlekshantering och elementens visningstyper såsom block, inline och inline-block.

Styr horisontella och vertikala layouter med Flexbox-egenskaper. Justera riktning, justering och avstånd för att strukturera UI-komponenter.

Förbättra layouter med bakgrundsfärger, bilder, pseudo-element och skuggor. Styla visuella komponenter för djup och kontrast.

Working with Fonts and Font Properties

font-family

font-size

font-weight

font-style

Pseudo-class ::first-letter

1. Which property determines the thickness of the font?

2. What is the default value for the `font-style` property in CSS?