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Belajar Bootstrap #70 Flexbox di Bootstrap

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Ahmad Dika Zulfahmi

24 Maret 2025

1. Mengaktifkan Flexbox

Flexbox memungkinkan kita mengatur tata letak elemen dengan lebih fleksibel. Untuk membuat container flex, kita bisa menggunakan .d-flex atau .d-inline-flex.

<!DOCTYPE html>
<html lang="id">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>

    <div class="d-flex p-2 bd-highlight">Saya adalah container flex!</div>

    <div class="d-inline-flex p-2 bd-highlight">Saya adalah container inline-flex!</div>

</body>
</html>

berikut hasilnya:

2. Arah (Direction)

Kita bisa mengatur arah elemen dalam flexbox menggunakan .flex-row (default), .flex-row-reverse, .flex-column, dan .flex-column-reverse.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex flex-row bd-highlight mb-3">
        <div class="p-2 bd-highlight bg-primary text-white">Item 1</div>
        <div class="p-2 bd-highlight bg-secondary text-white">Item 2</div>
        <div class="p-2 bd-highlight bg-success text-white">Item 3</div>
    </div>

    <div class="d-flex flex-column bd-highlight">
        <div class="p-2 bd-highlight bg-danger text-white">Item 1</div>
        <div class="p-2 bd-highlight bg-warning text-dark">Item 2</div>
        <div class="p-2 bd-highlight bg-info text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

3. Justify Content (Penempatan Elemen)

Kita bisa mengatur posisi elemen di dalam flex container dengan .justify-content-start, .justify-content-center, .justify-content-end, .justify-content-between, .justify-content-around, dan .justify-content-evenly.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex justify-content-center bg-light p-3">
        <div class="p-2 bg-primary text-white">Item 1</div>
        <div class="p-2 bg-secondary text-white">Item 2</div>
        <div class="p-2 bg-success text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

4. Align Items (Posisi Elemen Secara Vertikal)

Untuk mengatur posisi elemen secara vertikal, gunakan .align-items-start, .align-items-center, dan .align-items-end.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex align-items-center bg-light p-3" style="height: 200px;">
        <div class="p-2 bg-primary text-white">Item 1</div>
        <div class="p-2 bg-secondary text-white">Item 2</div>
        <div class="p-2 bg-success text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

5. Align Self (Posisi Satu Elemen Secara Mandiri)

Gunakan .align-self-start, .align-self-center, atau .align-self-end untuk mengatur posisi masing-masing item secara individual.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex bg-light p-3" style="height: 200px;">
        <div class="p-2 align-self-start bg-primary text-white">Item 1</div>
        <div class="p-2 align-self-center bg-secondary text-white">Item 2</div>
        <div class="p-2 align-self-end bg-success text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

6. Wrap (Melipat Elemen)

Gunakan .flex-wrap untuk memungkinkan item flex berpindah ke baris baru jika tidak cukup ruang.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex flex-wrap bg-light p-3">
        <div class="p-2 bg-primary text-white">Item 1</div>
        <div class="p-2 bg-secondary text-white">Item 2</div>
        <div class="p-2 bg-success text-white">Item 3</div>
        <div class="p-2 bg-danger text-white">Item 4</div>
        <div class="p-2 bg-warning text-dark">Item 5</div>
    </div>

</body>

</html>

berikut hasilnya:

7. Order (Mengatur Urutan Elemen)

Gunakan .order-1, .order-2, .order-3, dll., untuk mengatur urutan tampilan elemen.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex bg-light p-3">
        <div class="p-2 order-3 bg-primary text-white">Item 1</div>
        <div class="p-2 order-1 bg-secondary text-white">Item 2</div>
        <div class="p-2 order-2 bg-success text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

8. Grow & Shrink (Ukuran Fleksibel)

Gunakan .flex-grow-1 agar item bisa mengisi ruang kosong yang tersedia.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex bg-light p-3">
        <div class="p-2 flex-grow-1 bg-primary text-white">Item 1</div>
        <div class="p-2 bg-secondary text-white">Item 2</div>
        <div class="p-2 bg-success text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

9. Auto Margin (Membuat Jarak Otomatis)

Gunakan .me-auto untuk mendorong item ke kanan dan .ms-auto untuk mendorong item ke kiri.

<!DOCTYPE html>
<html lang="id">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flexbox Bootstrap</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
</head>

<body>

    <div class="d-flex bg-light p-3">
        <div class="p-2 me-auto bg-primary text-white">Item 1</div>
        <div class="p-2 bg-secondary text-white">Item 2</div>
        <div class="p-2 bg-success text-white">Item 3</div>
    </div>

</body>

</html>

berikut hasilnya:

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