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我正嘗試在導航欄合攏中使用下拉菜單。問題是，當我沒有打開下拉菜單時，一切正常，這意味着我不需要滾動條來查看內容。但是，當下拉菜單切換時，高度不會更改，因此下拉內容不可見。BootStrap 3 - 帶有下拉菜單的導航欄，下拉菜單的擴展名超出了最大高度
如果我不打開下拉：
一切都很好，但是當我打開下拉：我輸了3個菜單隻能滾動，它們是：添加，編輯，刪除
您需要上下滾動。
這是我的CSS代碼：
/*
* Base structure
*/
/* Move down content because we have a fixed navbar that is 50px tall */
body
{
overflow-y: scroll;
}
/*
* Global add-ons
*/
.custom-button-length
{
width: 100px;
}
.sub-header
{
padding-bottom: 10px;
border-bottom: 1px solid #eee;
}
/*
* Top navigation
* Hide default border to remove 1px line.
*/
@media (max-width: 767px)
{
.navbar-fixed-top
{
position: relative;
top: auto;
}
.navbar-collapse
{
max-height: none;
}
body
{
margin: 0;
}
.navbar-default
{
max-height: none;
}
}
/*
* Sidebar
*/
/* Hide for mobile, show later */
.wrapper
{
padding-left: 0;
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
}
.wrapper.toggled
{
padding-left: 250px;
}
.wrapper.toggled .sidebar
{
width: 0px;
padding-left: 0px;
padding: 0px;
}
.sidebar
{
position: fixed;
top: 51px;
bottom: 0;
left: 0px;
z-index: 1000;
display: block;
padding: 20px;
padding-right: 100px;
overflow-x: hidden;
overflow-y: auto; /* Scrollable contents if viewport is shorter than content. */
background-color: #f5f5f5;
border-right: 1px solid #eee;
-webkit-transition: all 1.0s ease;
-moz-transition: all 1.0s ease;
-o-transition: all 1.0s ease;
transition: all 1.0s ease;
}
@media (max-width: 768px)
{
.sidebar
{
width: 0px;
padding-left: 0px;
padding: 0px;
}
}
/* Sidebar navigation */
.nav-sidebar
{
margin-right: -21px; /* 20px padding + 1px border */
margin-bottom: 20px;
margin-left: -20px;
}
.nav-sidebar > li > a
{
padding-right: 20px;
padding-left: 20px;
position: fixed-top;
}
.nav-sidebar > .active > a,
.nav-sidebar > .active > a:hover,
.nav-sidebar > .active > a:focus
{
color: #fff;
background-color: #428bca;
}
/*
* Main content
*/
.main
{
padding: 20px;
margin-left: 210px;
margin-top:50px;
-webkit-transition: all 1.0s ease;
-moz-transition: all 1.0s ease;
-o-transition: all 1.0s ease;
transition: all 1.0s ease;
}
@media (max-width: 768px)
{
.main
{
margin-left: 0px;
margin-top: -20px;
padding-top: 20px;
-webkit-transition: all 1.0s ease;
-moz-transition: all 1.0s ease;
-o-transition: all 1.0s ease;
transition: all 1.0s ease;
}
}
.main .page-header
{
margin-top: 0;
}
.main.toggled
{
padding: 20px;
margin-left: 0px;
-webkit-transition: all 1.0s ease;
-moz-transition: all 1.0s ease;
-o-transition: all 1.0s ease;
transition: all 1.0s ease;
}
/*
* Placeholder dashboard ideas
*/
.placeholders
{
margin-bottom: 30px;
text-align: center;
}
.placeholders h4
{
margin-bottom: 0;
}
.placeholder
{
margin-bottom: 20px;
}
.placeholder img
{
display: inline-block;
border-radius: 50%;
}
.graph-container
{
box-sizing: border-box;
width: 850px;
height: 450px;
padding: 20px 15px 15px 15px;
margin: 15px auto 30px auto;
border: 1px solid #ddd;
background: #fff;
background: linear-gradient(#f6f6f6 0, #fff 50px);
background: -o-linear-gradient(#f6f6f6 0, #fff 50px);
background: -ms-linear-gradient(#f6f6f6 0, #fff 50px);
background: -moz-linear-gradient(#f6f6f6 0, #fff 50px);
background: -webkit-linear-gradient(#f6f6f6 0, #fff 50px);
box-shadow: 0 3px 10px rgba(0,0,0,0.15);
-o-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
-ms-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
-moz-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
-webkit-box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}
.graph-placeholder
{
width: 100%;
height: 100%;
font-size: 14px;
line-height: 1.2em;
}
.legend table
{
border-spacing: 5px;
}
這是我的HTML代碼：
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#"> WebStats</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Dashboard</a></li>
<li><a href="#">Settings</a></li>
<li><a href="#">Profile</a></li>
<li><a href="{% url 'WebApp:logout'%}">Logout</a></li>
</ul>
<ul class="nav navbar-nav navbar-left">
<li><a href="{% url 'WebApp:index'%}">Views</a></li>
<li><a href="#toggleMenu">SideBar</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
Chart Options
<span class="caret"></span>
</a>
<ul class="dropdown-menu" role="menu" data-no-collapse="true">
<li><a href="{% url 'WebApp:addChart'%}">Add</a></li>
<li><a href="{% url 'WebApp:editChart'%}">Edit</a></li>
<li><a href="#removeChart">Remove</a></li>
</ul>
</li>
</ul>
</div>
</div>
</div>
我在移動模式下施加最大高度爲None當像素小於768，然而，它仍然需要向下滾動。