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<div class="btn-group"> <button class="btn">1</button> <button class="btn">2</button> <button class="btn">3</button> </div>
<div class="btn-toolbar"> <div class="btn-group"> ... </div> <div class="btn-group"> ... </div> </div>
<div class="btn-group btn-group-vertical"> ... </div>
<div class="btn-group"> <a class="btn dropdown-toggle" data-toggle="dropdown" href="#"> Action <span class="caret"></span> </a> <ul class="dropdown-menu"> <!-- dropdown menu links --> </ul> </div>
<div class="btn-group"> <button class="btn">Action</button> <button class="btn dropdown-toggle" data-toggle="dropdown"> <span class="caret"></span> </button> <ul class="dropdown-menu"> <!-- dropdown menu links --> </ul> </div>
<div class="btn-group dropup"> <button class="btn">Dropup</button> <button class="btn dropdown-toggle" data-toggle="dropdown"> <span class="caret"></span> </button> <ul class="dropdown-menu"> <!-- dropdown menu links --> </ul> </div>
<div class="dropdown"></div>(2) 使用了一個(gè)<button>按鈕做為父菜單,并且定義類名“dropdown-toggle”和自定義“data-toggle”屬性,且值必須和最外容器類名一致
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown"> 下拉菜單 <span class="caret"></span> </button>(3) 下拉菜單項(xiàng)使用一個(gè)ul列表,并且定義一個(gè)類名為“dropdown-menu”
<ul class="dropdown-menu"></ul>完整實(shí)現(xiàn)代碼如下:
<div class="dropdown"> <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown"> 下拉菜單 <span class="caret"></span> </button> <ul class="dropdown-menu" role="menu" aria-labelledby="dropdownMenu1"> <li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜單項(xiàng)</a></li> <li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜單項(xiàng)</a></li> <li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜單項(xiàng)</a></li> <li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜單項(xiàng)</a></li> </ul> </div>
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