Apa nilai-nilai CSS position?

Question

Accepted Answer

`position` ngontrol carane elemen diposisikan lan apa properti offset (`top`/`right`/`bottom`/`left`) berlaku.

```css
.a { position: static; }   /* default — normal flow, offsets IGNORED */
.b { position: relative; } /* normal flow, but offsets shift it from itself */
.c { position: absolute; } /* removed from flow, positioned vs nearest positioned ancestor */
.d { position: fixed; }    /* removed from flow, positioned vs the VIEWPORT */
.e { position: sticky; }   /* hybrid: normal until a scroll threshold, then sticks */
```

## relative + absolute: pasangan kunci

`absolute` nposisikake elemen relatif kanggo **leluhur sing diposisikan paling cedhak** (apa wae liyane saka `static`). Dadi sampeyan tetapake `position: relative` ing induk kanggo nggawe iki titik referensi:

```css
.card {
  position: relative;   /* becomes the positioning context */
}
.badge {
  position: absolute;   /* positioned relative to .card */
  top: 8px;
  right: 8px;           /* pins the badge to the card's top-right corner */
}
```

Pola relative-parent / absolute-child iki ana ing mana-mana: badge, dropdown, tooltip, tombol tutup.

## fixed vs sticky

```css
.navbar { position: fixed; top: 0; }   /* stays put on screen while scrolling */
.section-header { position: sticky; top: 0; } /* scrolls with content, then sticks at top */
```

- **fixed** — dikunci menyang viewport (tansah katon), contone navbar sing langgeng.
- **sticky** — tumindak relatif nganti mudhun ing threshold (`top: 0`), banjur tetep ana nalika kontainere katon — apik kanggo header bagian.

## Kesalahan umum

Elemen `absolute`/`fixed` **dibusak saka aliran normal**, dadi ora mateni pangokoan — sedulur tumindak kaya-kaya ora ana, kang bisa nyebabake tindihan. Rencana kanggo iku (contone nambah padding kanggo ngimbangi navbar tetep).

## Mengapa hal ini penting

`position` penting kanggo overlay, header lengket, modal, dropdown, lan badge.

Hubungan relative-parent/absolute-child lan distinction fixed-vs-sticky minangka inti praktis sing sampeyan karepake terus-terusan.