花了一天時間學了下bootstrap入門,想必你們用css寫前端頁面的時候都很痛苦,bootstrap就是來解決這個問題的,它封裝了css的不少樣式,開發的時候直接拿來用就能夠了,提升了開發效率css
bootstrap官網地址:https://www.bootcss.com/html
bootstrap比較優秀的就是 提供了響應式佈局(能夠適配pc端、pad端、手機端的佈局,下面會貼效果圖),還有全局CSS樣式和封裝好了的JS組件和插件前端
響應式佈局
1.同一套頁面能夠兼容不一樣分辨率的設備
2.實現:依賴於柵格系統:將一行平均分紅12個格子,能夠指定元素佔幾個格子
步驟:
1.定義容器:至關於以前的table
容器分類:
1.container:兩邊留白,每種設備佔比不一樣
2.container-fluid:每一種設備都是100%寬度
2.定義行:至關於以前的tr 樣式:row
3.定義元素:指定該元素在不一樣的設備上,所佔的格子數目 樣式:col-設備代號-格子數目
設備代號:
1.xs:超小屏幕 手機(<768px) col-xs-12
2.sm:小屏幕 平板(>=768px)
3.md:中等屏幕 桌面顯示器(>=992px)
4.lg:大屏幕 大桌面顯示器(>=1200px)
注意:
1.一行中若是格子數目超過12,則超出部分自動換行
2.柵格類屬性能夠向上兼容。柵格類適用於與屏幕寬度大於或等於分界點大小的設備
3.若是真實設備寬度小於了設置柵格類屬性的設備代碼的最小值,會一個元素佔滿一整行jquery
全局CSS樣式
按鈕 class="btn btn-default"
圖片 class="img-responsive" 圖片在任意尺寸都佔100%
圖片形狀 <img src="..." alt="..." class="img-rounded"> 方形
<img src="..." alt="..." class="img-circle"> 圓形
<img src="..." alt="..." class="img-thumbnail"> 相框
表格 class="table table-bordered table-hover"
表單 class="form-control"
組件
導航條
分頁條
插件
輪播圖git
柵格github
看見沒,它可以動態的適配不一樣的屏幕大小npm
代碼以下bootstrap
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
<style> .inner { border: 1px solid red;
}
</style>
</head>
<body>
<br>
<div class="container">
<div class="row">
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
<div class="col-lg-1 col-sm-2 inner">柵格</div>
</div>
</div>
</body>
</html>
全局CSS樣式微信
代碼以下app
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
<style> .inner { border: 1px solid red;
}
</style>
</head>
<body>
<br>
<a class="btn btn-default" href="#" role="button">Link</a>
<button class="btn btn-default" type="submit">Button</button>
<input class="btn btn-default" type="button" value="Input">
<input class="btn btn-default" type="submit" value="Submit">
<br><br>
<!-- Provides extra visual weight and identifies the primary action in a set of buttons -->
<button type="button" class="btn btn-primary">(首選項)Primary</button>
<!-- Indicates a successful or positive action -->
<button type="button" class="btn btn-success">(成功)Success</button>
<!-- Contextual button for informational alert messages -->
<button type="button" class="btn btn-info">(通常信息)Info</button>
<!-- Indicates caution should be taken with this action -->
<button type="button" class="btn btn-warning">(警告)Warning</button>
<!-- Indicates a dangerous or potentially negative action -->
<button type="button" class="btn btn-danger">(危險)Danger</button>
<!-- Deemphasize a button by making it look like a link while maintaining button behavior -->
<button type="button" class="btn btn-link">(連接)Link</button>
</body>
</html>
表格
代碼以下
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<br>
<table class="table table-bordered table-hover">
<tr>
<th>編號</th>
<th>姓名</th>
<th>年齡</th>
</tr>
<tr>
<td>001</td>
<td>張三</td>
<td>23</td>
</tr>
<tr>
<td>002</td>
<td>張三</td>
<td>23</td>
</tr>
<tr>
<td>003</td>
<td>張三</td>
<td>23</td>
</tr>
</table>
</body>
</html>
表單
代碼
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<br>
<form class="form-horizontal">
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">Email</label>
<div class="col-sm-10">
<input type="email" class="form-control" id="inputEmail3" placeholder="Email">
</div>
</div>
<div class="form-group">
<label for="inputPassword3" class="col-sm-2 control-label">Password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="inputPassword3" placeholder="Password">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<div class="checkbox">
<label>
<input type="checkbox"> Remember me </label>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-default">Sign in</button>
</div>
</div>
</form>
</body>
</html>
導航條
代碼
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<br>
<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>
</body>
</html>
分頁條
代碼
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<br>
<nav aria-label="Page navigation">
<ul class="pagination">
<li class="disabled">
<a href="#" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
<li><a href="#">1</a></li>
<li class="active"><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>
</body>
</html>
輪播圖
代碼
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3個meta標籤*必須*放在最前面,任何其餘內容都*必須*跟隨其後! -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的全部 JavaScript 插件都依賴 jQuery,因此必須放在前邊) -->
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<!-- 加載 Bootstrap 的全部 JavaScript 插件。你也能夠根據須要只加載單個插件。 -->
<script src="js/bootstrap.min.js"></script>
</head>
<body>
<br>
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="img/001.jpg" alt="...">
<div class="carousel-caption"> ... </div>
</div>
<div class="item">
<img src="img/001.jpg" alt="...">
<div class="carousel-caption"> ... </div>
</div> ... </div>
<!-- Controls -->
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</body>
</html>
demo案例
代碼地址:https://github.com/king1039/bootstrap-demo
總的來講,使用bootstrap開發是很是方便的,並且適配多種屏幕尺寸,CSS樣式拿來就用,免去了不少煩惱
歡迎關注個人微信公衆號:安卓圈