使用 bootstrap 3,我正在处理的网站有几个导航栏,顶部有主页、注册...,另一个有搜索栏选项,然后还有一个用于主要类别(navbar3),它们是下拉菜单。问题出在 navbar3 上。我需要下拉菜单占据 View 宽度的整个宽度,不超过 980px。现在,当单击下拉菜单时,弹出窗口从其父 div 的开头开始,其受尊重的 col-xs-2。我需要弹出窗口从行的开头开始(就像鞋类目前正在做的那样)并将整个宽度扩展到 980 像素。因此,如果您单击服装,我希望该下拉菜单在鞋类下拉菜单开始的同一点开始。我已经排除了一些对提出解决方案没有影响的 css。品牌没有弹出框
#backgroundcategory {
margin: 0 auto;
height: 37px;
}
.maxwidth {
max-width: 980px;
}
.categorydropadjust {
width: 20%;
}
.categoryheaders {
padding-left: 0;
margin: 0 auto;
font-weight: 700;
font-size: 20px;
height: 37px;
}
.vcenter {
display: flex;
align-items: center;
}
.centercat {
margin: 0 auto;
}
.dropdowncat:hover {
cursor: pointer;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div id="backgroundcategory">
<div class="container-fluid maxwidth">
<div class="row">
<div class="col-xs-2 categorydropadjust">
<div class="dropdown dropdowncat">
<div class="dropdown-toggle categoryheaders vcenter" id="footwear" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
<div class="centercat vcenter"><span class="glyphicon glyphicon-star"></span><span>FOOTWEAR</span>
</div>
</div>
<ul class="dropdown-menu dropdown-menu-back" aria-labelledby="footwear">
<li>Test</li>
<li>Test</li>
<li>Test</li>
</ul>
</div>
</div>
<div class="col-xs-2 categorydropadjust">
<div class="dropdown dropdowncat">
<div class="dropdown-toggle categoryheaders vcenter" id="clothing" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
<div class="centercat vcenter"><span class="glyphicon glyphicon-star"></span><span>CLOTHING</span>
</div>
</div>
<ul class="dropdown-menu dropdown-menu-back" aria-labelledby="clothing">
<li>Test</li>
<li>Test</li>
<li>Test</li>
</ul>
</div>
</div>
<div class="col-xs-2 categorydropadjust">
<div class="dropdown dropdowncat">
<div class="dropdown-toggle categoryheaders vcenter" id="gear" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
<div class="centercat vcenter"><span class="glyphicon glyphicon-star"></span><span>GEAR</span>
</div>
</div>
<ul class="dropdown-menu dropdown-menu-back" aria-labelledby="gear">
<li>Test</li>
<li>Test</li>
<li>Test</li>
</ul>
</div>
</div>
<div class="col-xs-2 categorydropadjust">
<div class="dropdown dropdowncat colortoggle">
<div class="dropdown-toggle categoryheaders vcenter" id="deals" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
<div class="centercat vcenter"><span class="glyphicon glyphicon-star goldcolor"></span><span class="goldcolor">DEALS</span>
</div>
</div>
</div>
</div>
<div class="col-xs-2 categorydropadjust">
<div class="dropdown dropdowncat colortoggle">
<div class="dropdown-toggle categoryheaders vcenter" id="brands" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
<div class="centercat vcenter"><span class="glyphicon glyphicon-star goldcolor"></span><span class="goldcolor">BRANDS</span>
</div>
</div>
<ul class="dropdown-menu dropdown-menu-back" aria-labelledby="brands">
<li>Test</li>
<li>Test</li>
<li>Test</li>
</ul>
</div>
</div>
</div>
</div>
</div>
最佳答案
从下拉父项中删除 position: relative
并使其相对于全宽栏。 Position Relative 使任何绝对子级使用它作为定位引用点。
如果将以下内容添加到 CSS 的底部,您将获得所需的效果。
.categorydropadjust, .dropdown {
位置:静态;
}
.container-fluid {
position:relative;
}
。下拉式菜单 {
宽度:100%;
}
关于html - Bootstrap 3 下拉菜单全宽,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39706809/