重修課程day55(Bootstrap之Bootstrap組件)
一 文本居中
col-xx-offset-xx:水平居中
center-block:使用於不涉及float標簽的水平居中,也不涉及列的居中,讓哪裏居中就寫到哪裏,本質是:margin:0 auto。
自定義居中,涉及列的居中:
.col-contered{
float:none;
margin:0 auto;
}
文本居中或者display:inline :text-center。
垂直居中,用在父標簽,讓子標簽垂直居中:
vertical-center{
dispaly:flex;
align-items:center;
}
二 Bootstrap組件
字體圖標:span表標簽加上一個樣式類的格式;格式:class=‘前綴 樣式’
<button type="button" class="btn btn-default" aria-label="Left Align"> <span class="glyphicon glyphicon-align-left" aria-hidden="true"></span> </button> <button type="button" class="btn btn-default btn-lg"> <span class="glyphicon glyphicon-star" aria-hidden="true"></span> Star </button>
三 下拉菜單
下拉菜單:使用javacript插件,讓其具有交互性
將下拉菜單和菜單的觸發器都放在dropdown裏面,或者另一個聲明position:relative的元素,然後加入到html的代碼裏面去。
<div class="dropdown"> <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true"> Dropdown <span class="caret"></span> </button> <ul class="dropdown-menu" aria-labelledby="dropdownMenu1"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div>
通過為下拉菜單父元素加上dropup類,可以讓下拉菜單向上彈出。
<div class="dropup"> <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu2" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Dropup <span class="caret"></span> </button> <ul class="dropdown-menu" aria-labelledby="dropdownMenu2"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div>
對齊:默認情況下,下拉菜單是沿著父元素的上沿和左側被定為100%的寬度的。為dropdown-menu加上dropdown-menu-right類可以讓菜單右邊對齊。
<ul class="dropdown-menu dropdown-menu-right" aria-labelledby="dLabel"> ... </ul>
標題:標明一組動作
<ul class="dropdown-menu" aria-labelledby="dropdownMenu3"> ... <li class="dropdown-header">Dropdown header</li> ... </ul>
分割線:為下拉菜單添加分割線,用於為多個鏈接分組
<ul class="dropdown-menu" aria-labelledby="dropdownMenuDivider"> ... <li role="separator" class="divider"></li> ... </ul>
禁用菜單項:為菜單中的某個元素添加上disabled類。
<ul class="dropdown-menu" aria-labelledby="dropdownMenu4"> <li><a href="#">Regular link</a></li> <li class="disabled"><a href="#">Disabled link</a></li> <li><a href="#">Another link</a></li> </ul>
四 按鈕組
按鈕:聽夠按鈕容器將按鈕放在同一行,於按鈕插件聯合使用可以設置單選和多選框的樣式和惡行為。
<div class="btn-group" role="group" aria-label="..."> <button type="button" class="btn btn-default">Left</button> <button type="button" class="btn btn-default">Middle</button> <button type="button" class="btn btn-default">Right</button> </div>
按鈕工具欄:將一組<div class="btn-group">
組合進一個 <div class="btn-toolbar">
中就可以做成更復雜的組件。
<div class="btn-toolbar" role="toolbar" aria-label="..."> <div class="btn-group" role="group" aria-label="...">...</div> <div class="btn-group" role="group" aria-label="...">...</div> <div class="btn-group" role="group" aria-label="...">...</div> </div>
尺寸:給btn-group加上btn-group-*類,就可以為按鈕設置大小了
<div class="btn-group btn-group-lg" role="group" aria-label="...">...</div> <div class="btn-group" role="group" aria-label="...">...</div> <div class="btn-group btn-group-sm" role="group" aria-label="...">...</div> <div class="btn-group btn-group-xs" role="group" aria-label="...">...</div>
嵌套:將btn-group放入到另一個btn-group裏面就可以了。
<div class="btn-group" role="group" aria-label="..."> <button type="button" class="btn btn-default">1</button> <button type="button" class="btn btn-default">2</button> <div class="btn-group" role="group"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Dropdown <span class="caret"></span> </button> <ul class="dropdown-menu"> <li><a href="#">Dropdown link</a></li> <li><a href="#">Dropdown link</a></li> </ul> </div> </div>
垂直排列:將一堆按鈕堆疊起來排列;分布式按鈕下拉菜單不支持這一種
<div class="btn-group-vertical" role="group" aria-label="..."> ... </div>
兩段對齊排列的按鈕組:讓每一個按鈕長度相同,同時讓他們填滿父元素的長度。
a元素:將一系列的btn元素放在btn-group和btn-group-justified中即可
<div class="btn-group btn-group-justified" role="group" aria-label="..."> ... </div>
button元素:為了將 <button>
元素用於兩端對齊的按鈕組中,必須將每個按鈕包裹進一個按鈕組中you must wrap each button in a button group。大部分的瀏覽器不能將我們的 CSS 應用到對齊的 <button>
元素上,但是,由於我們支持按鈕式下拉菜單,我們可以解決這個問題。
<div class="btn-group btn-group-justified" role="group" aria-label="..."> <div class="btn-group" role="group"> <button type="button" class="btn btn-default">Left</button> </div> <div class="btn-group" role="group"> <button type="button" class="btn btn-default">Middle</button> </div> <div class="btn-group" role="group"> <button type="button" class="btn btn-default">Right</button> </div> </div>
按鈕式下拉菜單:將按鈕變成下拉菜單的開關
<!-- Single button --> <div class="btn-group"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Action <span class="caret"></span> </button> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div>
分裂式下拉菜單:多一個分開的按鈕
<!-- Split button --> <div class="btn-group"> <button type="button" class="btn btn-danger">Action</button> <button type="button" class="btn btn-danger dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <span class="caret"></span> <span class="sr-only">Toggle Dropdown</span> </button> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div>
尺寸:
<!-- Large button group --> <div class="btn-group"> <button class="btn btn-default btn-lg dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Large button <span class="caret"></span> </button> <ul class="dropdown-menu"> ... </ul> </div> <!-- Small button group --> <div class="btn-group"> <button class="btn btn-default btn-sm dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Small button <span class="caret"></span> </button> <ul class="dropdown-menu"> ... </ul> </div> <!-- Extra small button group --> <div class="btn-group"> <button class="btn btn-default btn-xs dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Extra small button <span class="caret"></span> </button> <ul class="dropdown-menu"> ... </ul> </div>
向上下拉菜單:為父元素添加dropup類就可以將下拉菜單向上打開
<div class="btn-group dropup"> <button type="button" class="btn btn-default">Dropup</button> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <span class="caret"></span> <span class="sr-only">Toggle Dropdown</span> </button> <ul class="dropdown-menu"> <!-- Dropdown menu links --> </ul> </div>
五 輸入框組
為input標簽的前面,後面或者兩邊添加上文字或者按鈕就可以實現對表單控件的擴展,為input-group賦予input-group-addon或者input-group-btn類就可以為form-control的前或者後面添加上額外的元素了。
<div class="input-group"> <span class="input-group-addon" id="basic-addon1">@</span> <input type="text" class="form-control" placeholder="Username" aria-describedby="basic-addon1"> </div> <div class="input-group"> <input type="text" class="form-control" placeholder="Recipient‘s username" aria-describedby="basic-addon2"> <span class="input-group-addon" id="basic-addon2">@example.com</span> </div> <div class="input-group"> <span class="input-group-addon">$</span> <input type="text" class="form-control" aria-label="Amount (to the nearest dollar)"> <span class="input-group-addon">.00</span> </div> <label for="basic-url">Your vanity URL</label> <div class="input-group"> <span class="input-group-addon" id="basic-addon3">https://example.com/users/</span> <input type="text" class="form-control" id="basic-url" aria-describedby="basic-addon3"> </div>
尺寸:為input-group添加上相應的尺寸,其內部的元素就可以自動調整自身的尺寸,不需要為單另的每個輸入框添加重復的尺寸類了。
<div class="input-group input-group-lg"> <span class="input-group-addon" id="sizing-addon1">@</span> <input type="text" class="form-control" placeholder="Username" aria-describedby="sizing-addon1"> </div> <div class="input-group"> <span class="input-group-addon" id="sizing-addon2">@</span> <input type="text" class="form-control" placeholder="Username" aria-describedby="sizing-addon2"> </div> <div class="input-group input-group-sm"> <span class="input-group-addon" id="sizing-addon3">@</span> <input type="text" class="form-control" placeholder="Username" aria-describedby="sizing-addon3"> </div>
額外的多選和單選框:將單選和多選框添加到輸入框中
<div class="row"> <div class="col-lg-6"> <div class="input-group"> <span class="input-group-addon"> <input type="checkbox" aria-label="..."> </span> <input type="text" class="form-control" aria-label="..."> </div><!-- /input-group --> </div><!-- /.col-lg-6 --> <div class="col-lg-6"> <div class="input-group"> <span class="input-group-addon"> <input type="radio" aria-label="..."> </span> <input type="text" class="form-control" aria-label="..."> </div><!-- /input-group --> </div><!-- /.col-lg-6 --> </div><!-- /.row -->
額外元素的按鈕:為輸入框添加一層input-group-btn類的按鈕
<div class="row"> <div class="col-lg-6"> <div class="input-group"> <span class="input-group-btn"> <button class="btn btn-default" type="button">Go!</button> </span> <input type="text" class="form-control" placeholder="Search for..."> </div><!-- /input-group --> </div><!-- /.col-lg-6 --> <div class="col-lg-6"> <div class="input-group"> <input type="text" class="form-control" placeholder="Search for..."> <span class="input-group-btn"> <button class="btn btn-default" type="button">Go!</button> </span> </div><!-- /input-group --> </div><!-- /.col-lg-6 --> </div><!-- /.row -->
額外元素的按鈕式下拉菜單:
<div class="row"> <div class="col-lg-6"> <div class="input-group"> <div class="input-group-btn"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Action <span class="caret"></span></button> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div><!-- /btn-group --> <input type="text" class="form-control" aria-label="..."> </div><!-- /input-group --> </div><!-- /.col-lg-6 --> <div class="col-lg-6"> <div class="input-group"> <input type="text" class="form-control" aria-label="..."> <div class="input-group-btn"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Action <span class="caret"></span></button> <ul class="dropdown-menu dropdown-menu-right"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </div><!-- /btn-group --> </div><!-- /input-group --> </div><!-- /.col-lg-6 --> </div><!-- /.row -->
額外元素的分裂式下拉菜單:
<div class="input-group"> <div class="input-group-btn"> <!-- Button and dropdown menu --> </div> <input type="text" class="form-control" aria-label="..."> </div> <div class="input-group"> <input type="text" class="form-control" aria-label="..."> <div class="input-group-btn"> <!-- Button and dropdown menu --> </div> </div>
六 導航
在Bootstrap中,導航組件都是依賴於nav類,狀態來也是共用的。改變修飾類可以改變樣式。
標簽頁:nav-tabs類式依賴於nav基類的
<ul class="nav nav-tabs"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation"><a href="#">Profile</a></li> <li role="presentation"><a href="#">Messages</a></li> </ul>
膠囊式標簽類:使用nav-pills類實現的
<ul class="nav nav-pills"> <li role="presentation" class="active"><a href="#">Home</a></li> <li role="presentation"><a href="#">Profile</a></li> <li role="presentation"><a href="#">Messages</a></li> </ul>
膠囊式標簽類的垂直排列:為該元素的父元素添加上nav-stacked即可
<ul class="nav nav-pills nav-stacked"> ... </ul>
兩端對齊的標簽頁:在大於768px的屏幕上添加nav-justified就可以將標簽頁的寬度設置相同,並鋪滿一行,在小屏幕上就會堆疊起來。
<ul class="nav nav-tabs nav-justified"> ... </ul> <ul class="nav nav-pills nav-justified"> ... </ul>
禁用鏈接:還是只要加上disabled類即可
<ul class="nav nav-pills"> ... <li role="presentation" class="disabled"><a href="#">Disabled link</a></li> ... </ul>
添加下拉菜單:為html代碼添加上下拉菜單的插件即可
帶有下拉菜單的標簽頁:
<ul class="nav nav-tabs"> ... <li role="presentation" class="dropdown"> <a class="dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"> Dropdown <span class="caret"></span> </a> <ul class="dropdown-menu"> ... </ul> </li> ... </ul>
帶有下拉菜單的膠囊式標簽頁:
<ul class="nav nav-pills"> ... <li role="presentation" class="dropdown"> <a class="dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"> Dropdown <span class="caret"></span> </a> <ul class="dropdown-menu"> ... </ul> </li> ... </ul>
七 導航條
默認樣式的導航條:導航條是導航頁頭的基礎組件,並且可開可關。並且視口會根據屏幕大小開或者關
<nav class="navbar navbar-default"> <div class="container-fluid"> <!-- Brand and toggle get grouped for better mobile display --> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">Brand</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"> <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li> <li><a href="#">Link</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> <li role="separator" class="divider"></li> <li><a href="#">One more separated link</a></li> </ul> </li> </ul> <form class="navbar-form navbar-left"> <div class="form-group"> <input type="text" class="form-control" placeholder="Search"> </div> <button type="submit" class="btn btn-default">Submit</button> </form> <ul class="nav navbar-nav navbar-right"> <li><a href="#">Link</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </li> </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav>
品牌圖標:將導航條內放置品牌標誌的地方替換成img標簽就可以展示自己的品牌圖標。
<nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <a class="navbar-brand" href="#"> <img alt="Brand" src="..."> </a> </div> </div> </nav>
表單:將表單放置於navbar-form之內就可以呈現很好垂直對齊,並且在較窄的視呈現折疊狀態。
<form class="navbar-form navbar-left" role="search"> <div class="form-group"> <input type="text" class="form-control" placeholder="Search"> </div> <button type="submit" class="btn btn-default">Submit</button> </form>
按鈕:對於不包含在form中的button元素,加上navbar-btn後,可以讓特在導航條中垂直居中。
<button type="button" class="btn btn-default navbar-btn">Sign in</button>
文本:不文本包含在navbar-text中時,為了有正確的行為和顏色,通常使用p標簽。
<p class="navbar-text">Signed in as Mark Otto</p>
非導航的鏈接:navbsr-link類可以讓鏈接有正確的默認顏色和反色設置。
<p class="navbar-text navbar-right">Signed in as <a href="#" class="navbar-link">Mark Otto</a></p>
組件排列:添加navbar-left和navbar-right工具類讓導航鏈接,表單,按鈕或者文本對齊。
固定在頂部:添加上navbar-fixed-top類就可以將導航條固定在頂部了。還可以包含container或者container-fluid容器讓導航條居中
<nav class="navbar navbar-default navbar-fixed-top"> <div class="container"> ... </div> </nav>
固定在底部:添加上navbar-fixed-bottom類就可以將導航條固定在底部了。還可以讓導航條居中,方法同上。
<nav class="navbar navbar-default navbar-fixed-bottom"> <div class="container"> ... </div> </nav>
靜止在頂部:通過加上navbar-static-top類即可創建以惡搞隨著頁面向下滾動時導航條消失。
<nav class="navbar navbar-default navbar-static-top"> <div class="container"> ... </div> </nav>
反色的導航條:通過添加navbar-inverse類改變導航條的外觀。
<nav class="navbar navbar-inverse"> ... </nav>
八 路徑導航
通過添加css的:before和content屬性為各個路徑之間加上分割符。
<ol class="breadcrumb"> <li><a href="#">Home</a></li> <li><a href="#">Library</a></li> <li class="active">Data</li> </ol>
九 分頁
默認分頁:
<nav aria-label="Page navigation"> <ul class="pagination"> <li> <a href="#" aria-label="Previous"> <span aria-hidden="true">?</span> </a> </li> <li><a href="#">1</a></li> <li><a href="#">2</a></li> <li><a href="#">3</a></li> <li><a href="#">4</a></li> <li><a href="#">5</a></li> <li> <a href="#" aria-label="Next"> <span aria-hidden="true">?</span> </a> </li> </ul> </nav>
禁用和激活狀態:為不可點擊的頁碼添加上disabled類,給當前頁面添加active類。
<nav aria-label="..."> <ul class="pagination"> <li class="disabled"><a href="#" aria-label="Previous"><span aria-hidden="true">?</span></a></li> <li class="active"><a href="#">1 <span class="sr-only">(current)</span></a></li> ... </ul> </nav>
我們建議將 active 或 disabled 狀態的鏈接(即 <a>
標簽)替換為 <span>
標簽,或者在向前/向後的箭頭處省略<a>
標簽,這樣就可以讓其保持需要的樣式而不能被點擊。
<nav aria-label="..."> <ul class="pagination"> <li class="disabled"> <span> <span aria-hidden="true">?</span> </span> </li> <li class="active"> <span>1 <span class="sr-only">(current)</span></span> </li> ... </ul> </nav>
尺寸:通過添加pagination-lg或者pagination-sm來選擇尺寸的大小
<nav aria-label="..."><ul class="pagination pagination-lg">...</ul></nav> <nav aria-label="..."><ul class="pagination">...</ul></nav> <nav aria-label="..."><ul class="pagination pagination-sm">...</ul></nav>
翻頁:用簡單的標記和樣式做一個上一頁和下一頁的簡單翻頁
<nav aria-label="..."> <ul class="pager"> <li><a href="#">Previous</a></li> <li><a href="#">Next</a></li> </ul> </nav>
對齊鏈接:將頁碼左右對齊
<nav aria-label="..."> <ul class="pager"> <li class="previous"><a href="#"><span aria-hidden="true">←</span> Older</a></li> <li class="next"><a href="#">Newer <span aria-hidden="true">→</span></a></li> </ul> </nav>
可選的禁用狀態:disabled類也可以用於翻頁中的鏈接
<nav aria-label="..."> <ul class="pager"> <li class="previous disabled"><a href="#"><span aria-hidden="true">←</span> Older</a></li> <li class="next"><a href="#">Newer <span aria-hidden="true">→</span></a></li> </ul> </nav>
十 標簽
<h3>Example heading <span class="label label-default">New</span></h3>
可用的變體:改變標簽的外觀
<span class="label label-default">Default</span> <span class="label label-primary">Primary</span> <span class="label label-success">Success</span> <span class="label label-info">Info</span> <span class="label label-warning">Warning</span> <span class="label label-danger">Danger</span>
十一 徽章
給鏈接、導航等元素嵌套 <span class="badge">
元素,可以很醒目的展示新的或未讀的信息條目。
<a href="#">Inbox <span class="badge">42</span></a> <button class="btn btn-primary" type="button"> Messages <span class="badge">4</span> </button>
適配導航的激活狀態:Bootstrap 提供了內置的樣式,讓膠囊式導航內處於激活狀態的元素所包含的徽章展示相匹配的樣式。
<ul class="nav nav-pills" role="tablist"> <li role="presentation" class="active"><a href="#">Home <span class="badge">42</span></a></li> <li role="presentation"><a href="#">Profile</a></li> <li role="presentation"><a href="#">Messages <span class="badge">3</span></a></li> </ul>
十二 巨幕
<div class="jumbotron"> <h1>Hello, world!</h1> <p>...</p> <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a></p> </div>
可以將巨幕和瀏覽器保持一定的寬度並且沒有圓角,可以將組件放在container元素的外面,並且在組件內部添加一個container元素
<div class="jumbotron"> <div class="container"> ... </div> </div>
十三 頁頭
頁頭組件能為h1標簽增加適當的空間,並且與頁面的其他部分形成一定的分割。他支持h1標簽內部嵌套samll元素的默認效果。
<div class="page-header"> <h1>Example page header <small>Subtext for header</small></h1> </div>
十四 縮略圖
通過縮略圖組件擴展Bootstrap的柵格系統,可以很容易的展示柵格樣式的圖像,視頻和文本等內容。
默認樣式的實例:
<div class="row"> <div class="col-xs-6 col-md-3"> <a href="#" class="thumbnail"> <img src="..." alt="..."> </a> </div> ... </div>
自定義內容:添加一點點額外對的標簽,就可以八任意類型的html內容,例如標題,段落或者按鈕加入縮略圖組件內。
<div class="row"> <div class="col-sm-6 col-md-4"> <div class="thumbnail"> <img src="..." alt="..."> <div class="caption"> <h3>Thumbnail label</h3> <p>...</p> <p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#" class="btn btn-default" role="button">Button</a></p> </div> </div> </div> </div>
十五 警告框
將任意文本和一個可選的按鈕組合到一起,就能組成一個警告框,alert類時必須設置的。不同的類代表著不同的警告信息。
<div class="alert alert-success" role="alert">...</div> <div class="alert alert-info" role="alert">...</div> <div class="alert alert-warning" role="alert">...</div> <div class="alert alert-danger" role="alert">...</div>
可關閉的警告框:為警告框添加上alert-dismissible類和一個關閉按鈕
<div class="alert alert-warning alert-dismissible" role="alert"> <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button> <strong>Warning!</strong> Better check yourself, you‘re not looking too good. </div>
警告框裏面的鏈接:用alert-link工具類,可以為連接設置與當前警告框相同的顏色。
<div class="alert alert-success" role="alert"> <a href="#" class="alert-link">...</a> </div> <div class="alert alert-info" role="alert"> <a href="#" class="alert-link">...</a> </div> <div class="alert alert-warning" role="alert"> <a href="#" class="alert-link">...</a> </div> <div class="alert alert-danger" role="alert"> <a href="#" class="alert-link">...</a> </div>
十六 進度條
基本實例:
<div class="progress"> <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%;"> <span class="sr-only">60% Complete</span> </div> </div>
帶有提示標簽的進度條:將設置sr-only類的span標簽從進度條中移除,從而讓當前進度條顯示出來
<div class="progress"> <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%;"> 60% </div> </div>
根據情境變化效果:根據不同的場景顯示不同的效果
<div class="progress"> <div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width: 40%"> <span class="sr-only">40% Complete (success)</span> </div> </div> <div class="progress"> <div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100" style="width: 20%"> <span class="sr-only">20% Complete</span> </div> </div> <div class="progress"> <div class="progress-bar progress-bar-warning" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%"> <span class="sr-only">60% Complete (warning)</span> </div> </div> <div class="progress"> <div class="progress-bar progress-bar-danger" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" style="width: 80%"> <span class="sr-only">80% Complete (danger)</span> </div> </div>
條紋效果:為進度條加上條紋
<div class="progress"> <div class="progress-bar progress-bar-success progress-bar-striped" role="progressbar" aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width: 40%"> <span class="sr-only">40% Complete (success)</span> </div> </div> <div class="progress"> <div class="progress-bar progress-bar-info progress-bar-striped" role="progressbar" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100" style="width: 20%"> <span class="sr-only">20% Complete</span> </div> </div> <div class="progress"> <div class="progress-bar progress-bar-warning progress-bar-striped" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width: 60%"> <span class="sr-only">60% Complete (warning)</span> </div> </div> <div class="progress"> <div class="progress-bar progress-bar-danger progress-bar-striped" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" style="width: 80%"> <span class="sr-only">80% Complete (danger)</span> </div> </div>
動畫效果:為progress-bar-striped加上aactive類,使其呈現由右向左運動的效果
<div class="progress"> <div class="progress-bar progress-bar-striped active" role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 45%"> <span class="sr-only">45% Complete</span> </div> </div>
堆疊效果:將多個進度條放在同一個progress中。
<div class="progress"> <div class="progress-bar progress-bar-success" style="width: 35%"> <span class="sr-only">35% Complete (success)</span> </div> <div class="progress-bar progress-bar-warning progress-bar-striped" style="width: 20%"> <span class="sr-only">20% Complete (warning)</span> </div> <div class="progress-bar progress-bar-danger" style="width: 10%"> <span class="sr-only">10% Complete (danger)</span> </div> </div>
十七 媒體對象
默認樣式:
<div class="media"> <div class="media-left"> <a href="#"> <img class="media-object" src="..." alt="..."> </a> </div> <div class="media-body"> <h4 class="media-heading">Media heading</h4> ... </div> </div>
對齊:圖片或者其他媒體可以和底部,頂部和中部對齊。
<div class="media"> <div class="media-left media-middle"> <a href="#"> <img class="media-object" src="..." alt="..."> </a> </div> <div class="media-body"> <h4 class="media-heading">Middle aligned media</h4> ... </div> </div>
媒體對象列表:用一點點額外的標記,就能在列表內使用媒體對象組件
<ul class="media-list"> <li class="media"> <div class="media-left"> <a href="#"> <img class="media-object" src="..." alt="..."> </a> </div> <div class="media-body"> <h4 class="media-heading">Media heading</h4> ... </div> </li> </ul>
十八 列表組
列表組是靈活又強大的組件,不僅能用於顯示一組簡單的元素,還能用於復雜的定制的內容。
基本實例:最簡單的列表組僅僅是一個帶有多個列表條目的無序列表,另外還需要設置適當的類。我們提供了一些預定義的樣式,你可以根據自身的需求通過 CSS 自己定制。
<ul class="list-group"> <li class="list-group-item">Cras justo odio</li> <li class="list-group-item">Dapibus ac facilisis in</li> <li class="list-group-item">Morbi leo risus</li> <li class="list-group-item">Porta ac consectetur ac</li> <li class="list-group-item">Vestibulum at eros</li> </ul>
十九 徽章
給列表組加上徽章組件,他會被自動放在右邊
<ul class="list-group"> <li class="list-group-item"> <span class="badge">14</span> Cras justo odio </li> </ul>
二十 連接
將li標簽換成a標簽,就可以組成一個全部是鏈接的列表組。但是也需要將ul標簽替換成div標簽
<div class="list-group"> <a href="#" class="list-group-item active"> Cras justo odio </a> <a href="#" class="list-group-item">Dapibus ac facilisis in</a> <a href="#" class="list-group-item">Morbi leo risus</a> <a href="#" class="list-group-item">Porta ac consectetur ac</a> <a href="#" class="list-group-item">Vestibulum at eros</a> </div>
二十一 按鈕
列表組中的元素也可以直接是按鈕,但是父標簽必須是div標簽。
<div class="list-group"> <button type="button" class="list-group-item">Cras justo odio</button> <button type="button" class="list-group-item">Dapibus ac facilisis in</button> <button type="button" class="list-group-item">Morbi leo risus</button> <button type="button" class="list-group-item">Porta ac consectetur ac</button> <button type="button" class="list-group-item">Vestibulum at eros</button> </div>
被禁用的條目:為list-group-item加上disabled類就可以讓單個條目顯示成灰色,表出禁用的效果
<div class="list-group"> <a href="#" class="list-group-item disabled"> Cras justo odio </a> <a href="#" class="list-group-item">Dapibus ac facilisis in</a> <a href="#" class="list-group-item">Morbi leo risus</a> <a href="#" class="list-group-item">Porta ac consectetur ac</a> <a href="#" class="list-group-item">Vestibulum at eros</a> </div>
情景類:為列表中的條目加上情景類,默認樣式和鏈接列表都可以。還可以為列表中的條目設置active狀態。
<ul class="list-group"> <li class="list-group-item list-group-item-success">Dapibus ac facilisis in</li> <li class="list-group-item list-group-item-info">Cras sit amet nibh libero</li> <li class="list-group-item list-group-item-warning">Porta ac consectetur ac</li> <li class="list-group-item list-group-item-danger">Vestibulum at eros</li> </ul> <div class="list-group"> <a href="#" class="list-group-item list-group-item-success">Dapibus ac facilisis in</a> <a href="#" class="list-group-item list-group-item-info">Cras sit amet nibh libero</a> <a href="#" class="list-group-item list-group-item-warning">Porta ac consectetur ac</a> <a href="#" class="list-group-item list-group-item-danger">Vestibulum at eros</a> </div>
二十二 定制內容
列表組的每一個元素都可以是任何html內容,甚至是帶有鏈接的列表組
<div class="list-group"> <a href="#" class="list-group-item active"> <h4 class="list-group-item-heading">List group item heading</h4> <p class="list-group-item-text">...</p> </a> </div>
二十三 面版
基本實例:默認的panel組件所做的只是設置基本的邊框和內補來包含內容
<div class="panel panel-default"> <div class="panel-body"> Basic panel example </div> </div>
帶有標題的面版:通過panel-heading可以很簡單的為面版加入一個標題容器。也可以通過設置hn系列標簽添加一個預定的標題格式。不過hn系列的格式會被panel-heading的樣式覆蓋
<div class="panel panel-default"> <div class="panel-heading">Panel heading without title</div> <div class="panel-body"> Panel content </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h3 class="panel-title">Panel title</h3> </div> <div class="panel-body"> Panel content </div> </div>
帶註腳的面版:將按鈕和次要的文本放入panel-footer容器內。
<div class="panel panel-default"> <div class="panel-body"> Panel content </div> <div class="panel-footer">Panel footer</div> </div>
情景效果:
<div class="panel panel-primary">...</div> <div class="panel panel-success">...</div> <div class="panel panel-info">...</div> <div class="panel panel-warning">...</div> <div class="panel panel-danger">...</div>
帶表格的面版:為面板不需要邊框的表格加上table類。如果是帶有panel-body的面版,我們為表格上方加上一個邊框,看上去有分割效果
<div class="panel panel-default"> <!-- Default panel contents --> <div class="panel-heading">Panel heading</div> <div class="panel-body"> <p>...</p> </div> <!-- Table --> <table class="table"> ... </table> </div>
如果沒有panel-body,面板標題會和表格鏈接起來,沒有縫隙。
<div class="panel panel-default"> <!-- Default panel contents --> <div class="panel-heading">Panel heading</div> <!-- Table --> <table class="table"> ... </table> </div>
帶有列表組的面版:可以簡單的在任何面版中加上具有最大寬度的列表組
<div class="panel panel-default"> <!-- Default panel contents --> <div class="panel-heading">Panel heading</div> <div class="panel-body"> <p>...</p> </div> <!-- List group --> <ul class="list-group"> <li class="list-group-item">Cras justo odio</li> <li class="list-group-item">Dapibus ac facilisis in</li> <li class="list-group-item">Morbi leo risus</li> <li class="list-group-item">Porta ac consectetur ac</li> <li class="list-group-item">Vestibulum at eros</li> </ul> </div>
二十四 具有響應式特性的嵌入內容
根據被嵌入內容的外部容器的寬度,自動創建一個固定的比例,從而讓瀏覽器自動確定視頻或 slideshow 的尺寸,能夠在各種設備上縮放。
這些規則被直接應用在iframe,embed,video和object元素上。最終樣式與其他屬性相匹配,只要明確使用一個派生出來的embed-responsie-item類即可。
註意:iframe元素不需要設置frameborder=0屬性,內部已經這樣做了
<!-- 16:9 aspect ratio --> <div class="embed-responsive embed-responsive-16by9"> <iframe class="embed-responsive-item" src="..."></iframe> </div> <!-- 4:3 aspect ratio --> <div class="embed-responsive embed-responsive-4by3"> <iframe class="embed-responsive-item" src="..."></iframe> </div>
二十五 Well
默認效果:將Well用在元素上,就能有嵌入的簡單效果
<div class="well">...</div>
可選類/樣式:這兩個修飾類可以控制組件的內補和圓角的設置。
<div class="well well-lg">...</div>
<div class="well well-sm">...</div>
重修課程day55(Bootstrap之Bootstrap組件)