育將電腦工作室 - 線上書籍

數位相簿很上手
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### 一、導航

1. <span style="font-size:18px;"><http://bootstrap.hexschool.com/docs/4.0/components/navs/></span>
2. <span style="font-size:18px;">可用無序列表 ul<span style="color:#FF0000;">.nav</span> </span>
3. <span style="font-size:18px;">項目 li<span style="color:#FF0000;">.nav-item</span> </span>
4. <span style="font-size:18px;">連結：a<span style="color:#FF0000;">.nav-link</span> 作用中 <span style="color:#FF0000;">.active </span>禁用：<span style="color:#FF0000;">.disabled</span></span>
5. <span style="font-size:18px;">垂直導航：<span style="color:#FF0000;">.nav.flex-column</span> <span style="color:#FF0000;"></span></span>
6. <span style="font-size:18px;">水平居中：<span style="color:#FF0000;">.nav.justify-content-center</span> </span>
7. <span style="font-size:18px;">水平居右：<span style="color:#FF0000;">.nav.justify-content-end </span></span>
8. <span style="font-size:18px;">頁籤顯示：<span style="color:#FF0000;">.nav.nav-tabs</span> 、<span style="color:#FF0000;">.nav.<span style="font-size:18px;"><span style="color:#FF0000;">nav-</span></span>pills</span></span>
9. <span style="font-size:18px;">填充和對齊：<span style="color:#FF0000;">.nav.nav-fill</span> 、<span style="color:#FF0000;">.nav.nav-justified </span></span>
10. <span style="font-size:18px;">範例：<https://webugm.github.io/bootstrap4/navs.html></span>
 
### 二、導航列

1. <span style="font-size:18px;"><http://bootstrap.hexschool.com/docs/4.0/components/navbar/></span>
2. <span style="font-size:18px;">包裝：<span style="color:#FF0000;">nav.navbar</span></span>
3. <span style="font-size:18px;">品牌：<span style="color:#FF0000;">a.navbar-brand</span></span>
4. <span style="font-size:18px;">選單：<span style="color:#FF0000;">ul.navbar-nav</span> => 項目：<span style="color:#FF0000;">li.nav-item</span> => 連結：<span style="color:#FF0000;">a.nav-link</span></span>
5. <span style="font-size:18px;">展開顯示：<span style="color:#FF0000;">.navbar-expand</span>{-sm|-md|-lg|-xl}</span>
6. <span style="font-size:18px;">顯示樣式：<span style="color:#FF0000;">.navbar-light</span> 、<span style="color:#FF0000;">.bg-light</span></span>
 
### 三、響應式導航列

1. 包裝：.collapse.navbar-collapse 指定id navbar-content
2. 切換開關： ```
  <pre class="brush:as3;">
        <button class="navbar-toggler" data-toggle="collapse" data-target="#navbar-content">
          <span class="navbar-toggler-icon"></span>
        </button>
  ```
3. 導航位置：  
   fixed-top、fixed-bottom、sticky-top
 
### 四、下拉選單

```
<pre class="brush:as3;">

<li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
```

### 五、直接套用

```
<pre class="brush:as3;">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

<div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>
```

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