使导航栏响应的好方法答案

【问题标题】：good way to make navbar responsive使导航栏响应的好方法
【发布时间】：2020-02-15 17:00:17
【问题描述】：

我有一个导航栏，左侧有 3 个按钮，右侧有一个搜索栏。我相信我写了不好的（不是正确的方式）代码来使它们响应，但它们仍然对中小屏幕没有响应。我只是想找出让他们响应的好方法。我正在尝试制作一个如下图所示的页面。

  .searchbar{
    width: 400px;
  }
    .btn-primary{
    background-color: #002B42;
    padding:10px;
    font-size: 12px;
    border-radius: 4px;
    margin-left: 3px;
    font-family: Arial, Helvetica, sans-serif;
  }
  .btn-light{
     margin-left: 30px; 
    padding:10px;

    background-color: transparent;
    border: none;
    color: black;
    font-size: 13px;
    outline: none;
  }

<nav class="navbar navbar-expand-md navbar-light fixed-top bg-light">

<ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <button type="button" class="btn btn-primary"><i class="fa fa-bars" aria-hidden="true">&nbsp;&nbsp;SAVED LISTS</i></button>      </li>
      <li class="nav-item">
        <button class="btn btn-light"> <i class="fa fa-filter" aria-hidden="true">&nbsp;&nbsp; SAVED FILTER</i>  </button> 
      </li>     
      <li class="nav-item">
        <button class="btn btn-light"> <i class="fa fa-history" aria-hidden="true">&nbsp;&nbsp; SEARCH HISTORY</i>  </button> 
      </li>
    </ul>

  <div class="ml-auto">
    <input class="form-control searchbar" name="search" [(ngModel)]="search" type="search" placeholder="Search" />
  </div>
</nav

【问题讨论】：

标签： html css angular bootstrap-4

【解决方案1】：

首先，您不需要为.searchbar 类设置宽度400px。通过设置媒体查询，取消固定导航栏以获得更小的宽度。这样更适合用户体验。

在我看来，最标准的是 Bootstrap 本身所建议的。最好将您的<ul class="navbar-nav mr-auto"> 插入<div class="collapse navbar-collapse" id="my-navbar"> 并放置一个按钮作为导航栏切换器。并使用my-2 my-md-0 类而不是ml-auto 类进行搜索包装如下

body{
    padding-top: 60px;
}
.search-wrapper{
    flex-grow: 1;
   
}
    .btn-primary{
    background-color: #002B42;
    font-size: 12px;
    border-radius: 4px;
    font-family: Arial, Helvetica, sans-serif;
  }
  .btn-light{
    background-color: transparent;
    border: none;
    color: black;
    font-size: 13px;
    outline: none;
  }

  .items{
      margin-top: ;
  }

  
  @media only screen and (max-width: 768px) {
      body{
          padding-top: 0!important;
      }
    .navbar{
        position: relative;
    }
    .navbar-nav{
        align-items: center;
        margin: 15px 0;
    }
    .nav-item{
        margin:10px 0;
    }
  }

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" href="style.css">
    <title>Document</title>
</head>
<body>
    
    <nav class="navbar navbar-expand-md navbar-light fixed-top bg-light">

        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#my-navbar" aria-controls="my-navbar" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>

          <div class="collapse navbar-collapse" id="my-navbar">
            <ul class="navbar-nav mr-auto">
                <li class="nav-item active">
                  <button type="button" class="btn btn-primary"><i class="fa fa-bars" aria-hidden="true">&nbsp;&nbsp;SAVED LISTS</i></button>      </li>
                <li class="nav-item">
                  <button class="btn btn-light"> <i class="fa fa-filter" aria-hidden="true">&nbsp;&nbsp; SAVED FILTER</i>  </button> 
                </li>     
                <li class="nav-item">
                  <button class="btn btn-light"> <i class="fa fa-history" aria-hidden="true">&nbsp;&nbsp; SEARCH HISTORY</i>  </button> 
                </li>
              </ul>
          </div>
        
        
          <div class="my-2 my-md-0 search-wrapper">
            <input class="form-control searchbar" name="search" [(ngModel)]="search" type="search" placeholder="Search" />
          </div>
        </nav>

        <div class="items">
            <ol>
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                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
                <li>dhsiudshdsds</li>
            </ol>
        </div>


        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

</body>
</html>

【讨论】：

确保jquery、popper.js和bootstrap.js按顺序放置
是的，它现在可以工作，但我需要增加搜索栏宽度和每个按钮之间的间距。
所以你可以为搜索包装设置 flex-grow:1 和 margin:10px 0;对于每个导航项。我编辑了答案