W3Cschool
恭喜您成為首批注冊(cè)用戶
獲得88經(jīng)驗(yàn)值獎(jiǎng)勵(lì)
<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" class="dropdown-header">第一部分菜單頭部</li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜單項(xiàng)</a></li>
…
<li role="presentation" class="divider"></li>
<li role="presentation" class="dropdown-header">第二部分菜單頭部</li>
…
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜單項(xiàng)</a></li>
</ul>
</div>
.dropdown-header { display: block; padding: 3px 20px; font-size: 12px; line-height: 1.42857143; color: #999; }
<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>
Copyright©2021 w3cschool編程獅|閩ICP備15016281號(hào)-3|閩公網(wǎng)安備35020302033924號(hào)
違法和不良信息舉報(bào)電話:173-0602-2364|舉報(bào)郵箱:jubao@eeedong.com
掃描二維碼
下載編程獅App
編程獅公眾號(hào)
聯(lián)系方式:
更多建議: