Summary  
This chapter explains how to use the CSS flex-direction property to control the main axis direction and order of flex items with the values row, row-reverse, column, and column-reverse.

General domain of usage  
Website navigation layouts

The `flex-direction` property enables us to determine the direction in which flex items are arranged. By default, this property is set to `row`, resulting in a left-to-right layout in browsers that use English as the default language. You can set it to:
```css
flex-direction: row | column | row-reverse | column-reverse;
```

Let's consider the next website navigation as an example.

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## column
Pay attention to the width of the items; they cover the entire width of the parent.

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What does the `flex-direction` property do?

Behersk det grundlæggende i CSS, sproget til styling, der forvandler udseendet og oplevelsen af websider. Udforsk kernekoncepter såsom tekststilarter, farver, afstand, box-modellen, Flexbox og dekorative effekter. Opbyg færdigheder til at skabe visuelt engagerende og velstrukturerede websider.

Forstå, hvordan CSS forbindes til HTML, og hvordan stilarter anvendes gennem selektorer.
Anvendelse af farver, tekstformatering og hover-effekter til at kontrollere visuel præsentation.

Forbedring af typografi ved hjælp af linjehøjde, afstand, skrifttypeegenskaber og brugerdefinerede skrifttyper. Kontrol af skrifttypefamilier, vægt, stil og størrelse for øget læsbarhed.

Styring af layoutstruktur ved hjælp af margin, padding, kanter og breddeegenskaber. Forståelse af boksstørrelsesadfærd og elementvisningstyper såsom blok, inline og inline-blok.

Styring af horisontale og vertikale layouts ved hjælp af Flexbox-egenskaber. Justering af retning, justering og afstand for at strukturere UI-komponenter.

Forbedring af layouts ved brug af baggrundsfarver, billeder, pseudo-elementer og skygger. Styling af visuelle komponenter for dybde og kontrast.

Controlling Direction

row

row-reverse

column

column-reverse