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按鈕群組（Button group）

將一系列按鈕組合在單行上，或將它們堆疊成垂直欄。

本頁內容

基本範例（Basic example）

將一系列帶有 .btn 的按鈕包裹在 .btn-group 中。

html 
<div class="btn-group" role="group" aria-label="Basic example">
  <button type="button" class="btn btn-primary">Left</button>
  <button type="button" class="btn btn-primary">Middle</button>
  <button type="button" class="btn btn-primary">Right</button>
</div>

按鈕群組需要適當的 role 屬性和明確的標籤，以確保螢幕閱讀器等輔助技術能識別按鈕為群組並正確宣告它們。對於按鈕群組使用 role="group"，對於按鈕工具列使用 role="toolbar"。然後使用 aria-label 或 aria-labelledby 來標記它們。

這些類別也可以加入到連結群組，作為 .nav 導覽元件的替代方案。

Active link Link Link
html 
<div class="btn-group">
  <a href="#" class="btn btn-primary active" aria-current="page">Active link</a>
  <a href="#" class="btn btn-primary">Link</a>
  <a href="#" class="btn btn-primary">Link</a>
</div>

混合樣式（Mixed styles）

html 
<div class="btn-group" role="group" aria-label="Basic mixed styles example">
  <button type="button" class="btn btn-danger">Left</button>
  <button type="button" class="btn btn-warning">Middle</button>
  <button type="button" class="btn btn-success">Right</button>
</div>

外框樣式（Outlined styles）

html 
<div class="btn-group" role="group" aria-label="Basic outlined example">
  <button type="button" class="btn btn-outline-primary">Left</button>
  <button type="button" class="btn btn-outline-primary">Middle</button>
  <button type="button" class="btn btn-outline-primary">Right</button>
</div>

核取方塊和單選按鈕群組（Checkbox and radio button groups）

將類似按鈕的核取方塊和單選切換按鈕組合成外觀一致的按鈕群組。

html 
<div class="btn-group" role="group" aria-label="Basic checkbox toggle button group">
  <input type="checkbox" class="btn-check" id="btncheck1" autocomplete="off">
  <label class="btn btn-outline-primary" for="btncheck1">Checkbox 1</label>

  <input type="checkbox" class="btn-check" id="btncheck2" autocomplete="off">
  <label class="btn btn-outline-primary" for="btncheck2">Checkbox 2</label>

  <input type="checkbox" class="btn-check" id="btncheck3" autocomplete="off">
  <label class="btn btn-outline-primary" for="btncheck3">Checkbox 3</label>
</div>
html 
<div class="btn-group" role="group" aria-label="Basic radio toggle button group">
  <input type="radio" class="btn-check" name="btnradio" id="btnradio1" autocomplete="off" checked>
  <label class="btn btn-outline-primary" for="btnradio1">Radio 1</label>

  <input type="radio" class="btn-check" name="btnradio" id="btnradio2" autocomplete="off">
  <label class="btn btn-outline-primary" for="btnradio2">Radio 2</label>

  <input type="radio" class="btn-check" name="btnradio" id="btnradio3" autocomplete="off">
  <label class="btn btn-outline-primary" for="btnradio3">Radio 3</label>
</div>

按鈕工具列（Button toolbar）

將多組按鈕群組組合成按鈕工具列，以建立更複雜的元件。根據需要使用通用類別來分隔群組、按鈕等。

html 
<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
  <div class="btn-group me-2" role="group" aria-label="First group">
    <button type="button" class="btn btn-primary">1</button>
    <button type="button" class="btn btn-primary">2</button>
    <button type="button" class="btn btn-primary">3</button>
    <button type="button" class="btn btn-primary">4</button>
  </div>
  <div class="btn-group me-2" role="group" aria-label="Second group">
    <button type="button" class="btn btn-secondary">5</button>
    <button type="button" class="btn btn-secondary">6</button>
    <button type="button" class="btn btn-secondary">7</button>
  </div>
  <div class="btn-group" role="group" aria-label="Third group">
    <button type="button" class="btn btn-info">8</button>
  </div>
</div>

請隨意在工具列中混合輸入群組和按鈕群組。與上面的範例類似，您可能需要一些通用類別來正確地分隔元素。

html 
<div class="btn-toolbar mb-3" role="toolbar" aria-label="Toolbar with button groups">
  <div class="btn-group me-2" role="group" aria-label="First group">
    <button type="button" class="btn btn-outline-secondary">1</button>
    <button type="button" class="btn btn-outline-secondary">2</button>
    <button type="button" class="btn btn-outline-secondary">3</button>
    <button type="button" class="btn btn-outline-secondary">4</button>
  </div>
  <div class="input-group">
    <div class="input-group-text" id="btnGroupAddon">@</div>
    <input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon">
  </div>
</div>

<div class="btn-toolbar justify-content-between" role="toolbar" aria-label="Toolbar with button groups">
  <div class="btn-group" role="group" aria-label="First group">
    <button type="button" class="btn btn-outline-secondary">1</button>
    <button type="button" class="btn btn-outline-secondary">2</button>
    <button type="button" class="btn btn-outline-secondary">3</button>
    <button type="button" class="btn btn-outline-secondary">4</button>
  </div>
  <div class="input-group">
    <div class="input-group-text" id="btnGroupAddon2">@</div>
    <input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon2">
  </div>
</div>

尺寸（Sizing）

不需要對群組中的每個按鈕套用按鈕尺寸類別，只需在每個 .btn-group 上加入 .btn-group-*，包括巢狀多個群組時的每一個。



html 
<div class="btn-group btn-group-lg" role="group" aria-label="Large button group">
  <button type="button" class="btn btn-outline-primary">Left</button>
  <button type="button" class="btn btn-outline-primary">Middle</button>
  <button type="button" class="btn btn-outline-primary">Right</button>
</div>
<br>
<div class="btn-group" role="group" aria-label="Default button group">
  <button type="button" class="btn btn-outline-primary">Left</button>
  <button type="button" class="btn btn-outline-primary">Middle</button>
  <button type="button" class="btn btn-outline-primary">Right</button>
</div>
<br>
<div class="btn-group btn-group-sm" role="group" aria-label="Small button group">
  <button type="button" class="btn btn-outline-primary">Left</button>
  <button type="button" class="btn btn-outline-primary">Middle</button>
  <button type="button" class="btn btn-outline-primary">Right</button>
</div>

巢狀（Nesting）

當您想要將下拉選單與一系列按鈕混合時，請將 .btn-group 放在另一個 .btn-group 內。

html 
<div class="btn-group" role="group" aria-label="Button group with nested dropdown">
  <button type="button" class="btn btn-primary">1</button>
  <button type="button" class="btn btn-primary">2</button>

  <div class="btn-group" role="group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
      Dropdown
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
    </ul>
  </div>
</div>

垂直變體（Vertical variation）

讓一組按鈕垂直堆疊顯示，而不是水平排列。此處不支援分割按鈕下拉選單。

html 
<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
  <button type="button" class="btn btn-primary">Button</button>
  <button type="button" class="btn btn-primary">Button</button>
  <button type="button" class="btn btn-primary">Button</button>
  <button type="button" class="btn btn-primary">Button</button>
</div>
html 
<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
  <div class="btn-group" role="group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
      Dropdown
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
    </ul>
  </div>
  <button type="button" class="btn btn-primary">Button</button>
  <button type="button" class="btn btn-primary">Button</button>
  <div class="btn-group dropstart" role="group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
      Dropdown
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
    </ul>
  </div>
  <div class="btn-group dropend" role="group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
      Dropdown
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
    </ul>
  </div>
  <div class="btn-group dropup" role="group">
    <button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
      Dropdown
    </button>
    <ul class="dropdown-menu">
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
      <li><a class="dropdown-item" href="#">Dropdown link</a></li>
    </ul>
  </div>
</div>
html 
<div class="btn-group-vertical" role="group" aria-label="Vertical radio toggle button group">
  <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio1" autocomplete="off" checked>
  <label class="btn btn-outline-danger" for="vbtn-radio1">Radio 1</label>
  <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio2" autocomplete="off">
  <label class="btn btn-outline-danger" for="vbtn-radio2">Radio 2</label>
  <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio3" autocomplete="off">
  <label class="btn btn-outline-danger" for="vbtn-radio3">Radio 3</label>
</div>