javascript - 更改折叠的导航栏列表背景颜色

Question

所以，我遇到了这个问题，当我折叠我的导航栏(它变成了切换按钮)并打开列表时，背景颜色是透明的。由于我为导航栏使用了透明背景，这应该是预料之中的，但是当我打开内容时，它与屏幕上的文本重叠，变得凌乱和丑陋。我想将 div 的背景颜色设置为在我折叠到移动版本( Bootstrap )时更改，有什么办法可以做到吗？

这是我的代码:

.navbar-right .dropdown-menu {
  right: 0;
  left: auto;
  top: 60px;
}
.navbar-default .navbar-nav > .open > a,
.navbar-default .navbar-nav > .open > a:hover,
.navbar-default .navbar-nav > .open > a:focus {
  color: #4f82e9;
  background-color: transparent;
}
.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .active > a:focus {
  color: #4f82e9;
  background-color: transparent;
}
#offcanvas .navbar-nav > li:last-child > a {
  border-bottom-color: transparent !important;
}
@media (min-width: 768px) {
  .navbar-toggle {
    display: none;
  }
}
.navbar-default .navbar-toggle {
  position: relative;
  float: right;
  padding: 5px 5px;
  margin-top: 5px;
  margin-right: 5px;
  margin-bottom: 5px;
  background-color: transparent;
  background-image: none;
  border: 1px solid transparent !important;
  border-radius: 2px !important;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<nav class="navbar navbar-default navbar-fixed-top js-navbar-top js-toggleClass">

  <div class="container">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header page-scroll">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
        <span class="sr-only">Toggle navigation</span>

        <span class="icon-bar"></span>
        <span class="icon-bar"></span>

      </button>
      <a class="navbar-brand page-scroll" href="#page-top">ABA Arquitetura</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav navbar-right ">

        </li>
        <li>
          <a class="page-scroll" href="#lancamentos">Lançamentos</a>
        </li>
        <li>
          <a class="page-scroll" href="#services">Serviços</a>
        </li>
        <li>
          <a class="page-scroll" href="#portfolio">Portfolio</a>
        </li>
        <li>
          <a class="page-scroll" href="#contact">Contato</a>
        </li>
      </ul>
    </div>
    <!-- /.navbar-collapse -->
  </div>
  <!-- /.container-fluid -->
</nav>

Answer 1

这是您要找的吗？

将此添加到您的 CSS:

@media (max-width: 767px) {
  .navbar-collapse
    {
        background-color:#FA0;
    }
}

我曾经用一个 jsfiddle 得出这个结论:https://jsfiddle.net/7gvg6mxp/