尽量减少引导程序的宽度3下拉菜单

Question

下面是我的代码片段，你可以在下拉菜单中看到，它的宽度很大，所以我想使它的宽度等于父触发器按钮，任何人都知道如何使它？

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"> 
 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css"> 
 

 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> 
 
<div class="dropdown"> 
 
        <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-expanded="true"> 
 
         test 
 
         <span class="caret"></span> 
 
        </button> 
 
        <ul class="dropdown-menu dropdown-menu-right downloadoptions"> 
 
         <li role="presentation"><a class="tbcopy" role="menuitem" tabindex="-1" href="#">COPY</a></li> 
 
         <li role="presentation"><a class="tbpdf" role="menuitem" tabindex="-1" href="#">PDF</a></li> 
 
         <li role="presentation"><a class="tbcsv" role="menuitem" tabindex="-1" href="#">CSV</a></li> 
 
         <li role="presentation"><a class="tbexcel" role="menuitem" tabindex="-1" href="#">EXCEL</a></li> 
 
         <li role="presentation"><a class="tbprint" role="menuitem" tabindex="-1" href="#">PRINT</a></li> 
 
        </ul> 
 
       </div>

Answer 1

只是覆盖下拉菜单的默认min-width：

.downloadoptions { 
 
    min-width: 0 !important; 
 
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"> 
 
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css"> 
 

 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> 
 
<div class="dropdown"> 
 
    <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-expanded="true"> 
 
    test 
 
    <span class="caret"></span> 
 
    </button> 
 
    <ul class="dropdown-menu dropdown-menu-right downloadoptions"> 
 
    <li role="presentation"><a class="tbcopy" role="menuitem" tabindex="-1" href="#">COPY</a> 
 
    </li> 
 
    <li role="presentation"><a class="tbpdf" role="menuitem" tabindex="-1" href="#">PDF</a> 
 
    </li> 
 
    <li role="presentation"><a class="tbcsv" role="menuitem" tabindex="-1" href="#">CSV</a> 
 
    </li> 
 
    <li role="presentation"><a class="tbexcel" role="menuitem" tabindex="-1" href="#">EXCEL</a> 
 
    </li> 
 
    <li role="presentation"><a class="tbprint" role="menuitem" tabindex="-1" href="#">PRINT</a> 
 
    </li> 
 
    </ul> 
 
</div>

Answer 2

试试这个代码

dropdown-menu { 
width: 69px; 
    padding: 5px 0; 
    margin: 2px 0 0; 
    font-size: 13px; 
    }