带自举和角度的固定顶部导航条

Question

我无法得到我的固定顶部navbar在Angular中工作。 我的主要app.component模板是：

<page-header></page-header> <router-outlet></router-outlet>

和自举导航栏包含在我的页面标题：

<nav class="navbar navbar-default navbar-fixed-top"> 
     <div class="container"> 
     <div class="navbar-header"> 
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"> 
      <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="#">Project name</a> 
     </div> 
     <div id="navbar" class="navbar-collapse collapse"> 
      <ul class="nav navbar-nav"> 
      <li class="active"><a href="#">Home</a></li> 
      <li><a href="#about">About</a></li> 
      <li><a href="#contact">Contact</a></li> 
      <li class="dropdown"> 
       <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> 
       <ul class="dropdown-menu"> 
       <li><a href="#">Action</a></li> 
       <li><a href="#">Another action</a></li> 
       <li><a href="#">Something else here</a></li> 
       <li role="separator" class="divider"></li> 
       <li class="dropdown-header">Nav header</li> 
       <li><a href="#">Separated link</a></li> 
       <li><a href="#">One more separated link</a></li> 
       </ul> 
      </li> 
      </ul> 
      <ul class="nav navbar-nav navbar-right"> 
      <li><a href="../navbar/">Default</a></li> 
      <li><a href="../navbar-static-top/">Static top</a></li> 
      <li class="active"><a href="./">Fixed top <span class="sr-only">(current)</span></a></li> 
      </ul> 
     </div><!--/.nav-collapse --> 
     </div> 
    </nav> 

我的路由器出口竟300％的高度。我现在想实现的是页头保持固定在顶部。这甚至可能与Angular和bootstrap 4？

Answer 1

通过改变navbar-fixed-top只fixed-top