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问根据其他元素的高度设置边距-顶部。
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Stack Overflow用户

提问于 2020-01-16 14:13:58

回答 1查看 59关注 0票数 0

我有两个肚脐(一个在另一个下面)。我的目标是两者都是固定在顶部，所以我申请两者(固定顶)。

为了使另一个肚脐适合另一个，我使用了一个边缘顶部。我的问题是，这个边距顶部没有反应，如果你增加或缩小屏幕大小，肚脐条不完全适合在另一个下。

是否有一种方法来正确地拟合它们或计算必要的边缘顶部？

演示

<nav class="navbar navbar-expand-md navbar-light bg-white MyNavBar fixed-top" >
        <div class="navbar-collapse collapse w-100 order-1 order-md-0 dual-collapse2" id="dual-collapse2">
            <ul class="navbar-nav mr-auto">
                <li class="nav-item active">
                    <a class="btn"><img src="home.svg"></a>
                </li>
            </ul>
        </div>
        <div class="mx-auto order-0">
            <a class="btn"><img src=".logo-home.svg"></a>
            <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#dual-collapse2">
                <span class="navbar-toggler-icon"></span>
            </button>
        </div>
        <div class="navbar-collapse collapse w-100 order-3 dual-collapse2" id="dual-collapse2">
            <ul class="navbar-nav ml-auto">
                <div class="row">
                <li class="nav-item">
                 <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
                </li>
                <li class="nav-item">
                      <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
                </li>
                <li class="nav-item">
                     <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
                </li>
                <li class="nav-item">
                      <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
                </li>
                <li class="nav-item" style="width: 57px;">
                     <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
                </li>
            </div>
            </ul>
        </div>
    </nav>
<nav class="navbar navbar-expand-md navbar-light bg-white fixed-top Mytoolbar" style="margin-top: 74px;">
      <div class="navbar-collapse collapse w-100 order-1 order-md-0 dual-collapse22" id="dual-collapse22">
          <ul class="navbar-nav mr-auto" id="dual-collapse22">
            <li class="nav-item folder_category">
               <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
            <li class="nav-item btn-upload">
              <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
          </ul>
      </div>
      <div class="mx-auto order-0">
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#dual-collapse22">
          <span class="navbar-toggler-icon"></span>
      </button>
        <ul class="navbar-nav navbar-collapse collapse w-100 order-3" id="dual-collapse22">
          <li class="nav-item btn-upload">
              <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
            <li class="nav-item btn-upload">
              <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
        </ul>

      </div>
      <div class="navbar-collapse collapse w-100 order-3 dual-collapse22" id="dual-collapse22">
          <ul class="navbar-nav ml-auto">
           <li class="nav-item btn-upload">
              <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
            <li class="nav-item">
              <a class="nav-link">
            </a>
            </li>           
            <li class="nav-item">
              <a class="toggle-third nav-link">
                <img src="ra.svg" >
              </a>
            </li>
            <li class="nav-item btn-upload">
              <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
            <li class="nav-item btn-upload">
              <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
            </li>
          </ul>
      </div>
  </nav>

bootstrap-4

html

css

twitter-bootstrap

回答 1

Stack Overflow用户

回答已采纳

发布于 2020-01-16 15:06:33

这应该是可行的：

将两个导航条封装在同一个div中
给这个div fixed-top类
从两个导航栏中删除fixed-top类
删除第二个navbar (margin-top: 74px;)的内联css

见下文：

.MyNavBar {
  box-shadow: 0px 12px 17px rgba(188, 188, 203, 0.14);
  border-bottom: 1px solid #BCBCCB;
  z-index: 9999;
}

.MyNavBar img {
  cursor: pointer;
}

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet"/>
<div class="fixed-top">
  <nav class="navbar navbar-expand-md navbar-light bg-white MyNavBar">
    <div class="navbar-collapse collapse w-100 order-1 order-md-0 dual-collapse2" id="dual-collapse2">
      <ul class="navbar-nav mr-auto">
        <li class="nav-item active">
          <a class="btn"><img src="home.svg"></a>
        </li>
      </ul>
    </div>
    <div class="mx-auto order-0">
      <a class="btn"><img src=".logo-home.svg"></a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#dual-collapse2">
                <span class="navbar-toggler-icon"></span>
            </button>
    </div>
    <div class="navbar-collapse collapse w-100 order-3 dual-collapse2" id="dual-collapse2">
      <ul class="navbar-nav ml-auto">
        <div class="row">
          <li class="nav-item">
            <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
          </li>
          <li class="nav-item">
            <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
          </li>
          <li class="nav-item">
            <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
          </li>
          <li class="nav-item">
            <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
          </li>
          <li class="nav-item" style="width: 57px;">
            <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
          </li>
        </div>
      </ul>
    </div>
  </nav>
  <nav class="navbar navbar-expand-md navbar-light bg-white Mytoolbar">
    <div class="navbar-collapse collapse w-100 order-1 order-md-0 dual-collapse22" id="dual-collapse22">
      <ul class="navbar-nav mr-auto" id="dual-collapse22">
        <li class="nav-item folder_category">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
        <li class="nav-item btn-upload">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
      </ul>
    </div>
    <div class="mx-auto order-0">
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#dual-collapse22">
          <span class="navbar-toggler-icon"></span>
      </button>
      <ul class="navbar-nav navbar-collapse collapse w-100 order-3" id="dual-collapse22">
        <li class="nav-item btn-upload">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
        <li class="nav-item btn-upload">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
      </ul>

    </div>
    <div class="navbar-collapse collapse w-100 order-3 dual-collapse22" id="dual-collapse22">
      <ul class="navbar-nav ml-auto">
        <li class="nav-item btn-upload">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
        <li class="nav-item">
          <a class="nav-link">
          </a>
        </li>
        <li class="nav-item">
          <a class="toggle-third nav-link">
            <img src="ra.svg">
          </a>
        </li>
        <li class="nav-item btn-upload">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
        <li class="nav-item btn-upload">
          <a class="nav-link btn">sdfsdfsdfsdfsdfsdfsdfsdfsdfs</a>
        </li>
      </ul>
    </div>
  </nav>
</div>

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<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>

<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>
<p>asdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddjioasdjasdiasjdiowjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjdhio</p>

票数 1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/59771538

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