線上書籍

一、導航

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

二、導航列

1. http://bootstrap.hexschool.com/docs/4.0/components/navbar/
2. 包裝：nav.navbar
3. 品牌：a.navbar-brand
4. 選單：ul.navbar-nav => 項目：li.nav-item => 連結：a.nav-link
5. 展開顯示：.navbar-expand{-sm|-md|-lg|-xl}
6. 顯示樣式：.navbar-light 、.bg-light

三、響應式導航列

1. 包裝：.collapse.navbar-collapse 指定id navbar-content
2. 切換開關： <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 <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 <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>