BootStrap
# 概念：一个前端开发的框架，来自 Twitter，是目前很受欢迎的前端框架。BootStrap 是基于 HTML、CSS、JavaScript 的，简介灵活，能使得 Web 开发更加快捷。
* 框架：一个半成品软件，开发人员可以在框架的基础上，再进行开发，简化编码。
* 好处：
* 定义了很多的 css 样式和 js 插件。我们开发人员直接可以使用这些样式和插件得到丰富的页面效果。
* 响应式布局，同一套页面可以兼容不同分辨率的设备。
* 网址：https://www.bootcss.com/
# 快速入门
1）下载 BootStrap
2）复制这三个文件夹到项目下
3）创建 html 页面，引入必要的资源文件
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
head>
<body>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
body>
html>
响应式布局
# 同一套页面可以兼容不同分辨率的设备
# 实现：依赖于栅格系统，将一行平均分成 12 个格子，可以指定元素占几个格子
# 步骤：
1）定义容器（相当于之前的 table）
* 容器分类：
* container：两边留白
* container - fluid：每一种设备都是 100% 的宽度
2）定义行，相当于之前的 tr 样式：row
3）定义元素，指定该元素在不同的设备上，所占的格子数目。样式：col - 设备代号 - 格子数目
* 设备代号
①：xs：超小屏幕，手机（ < 768px ）如：col - xs - 12
②：sm：小屏幕，平板（ > 768px ）
③：md：中等屏幕，桌面显示器（> 992px）
④：lg：大屏幕，大桌面显示器（> 1200px）
* 注意：
1、一行中如果格子数目超过 12，则超出部分自动换行
2、栅格类属性可以向上兼容，栅格类适用于与屏幕宽度大于或等于分界点大小的设备
3、如果真实设备宽度小于了设置栅格类属性的设备代码的最小值，一个元素会占满一整行
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<style>
.inner {
border: 1px solid red;
}
style>
head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
<div class="col-lg-1 col-sm-2 inner">栅格div>
div>
div>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
body>
html>
css样式 和 JS插件
# 全局 css 样式：
* 按钮：class = "btn btn - default"
* 图片：
* class = "img - responsive"：图片在任意尺寸都占 100%
* 图片形状：
* ：方形
* ：圆形
* ：相框
* 表格：
* table
* table - bordered
* table - hover
* 表单
* class = "form - control"
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
head>
<body>
<a class="btn btn-default" href="#" role="button">Linka>
<button class="btn btn-default" type="submit">Buttonbutton>
<input class="btn btn-default" type="button" value="Input">
<input class="btn btn-default" type="submit" value="Submit">
<hr>
<button type="button" class="btn btn-default">（默认样式）Defaultbutton>
<button type="button" class="btn btn-primary">（首选项）Primarybutton>
<button type="button" class="btn btn-success">（成功）Successbutton>
<button type="button" class="btn btn-info">（一般信息）Infobutton>
<button type="button" class="btn btn-warning">（警告）Warningbutton>
<button type="button" class="btn btn-danger">（危险）Dangerbutton>
<button type="button" class="btn btn-link">（链接）Linkbutton>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
<hr>
<img src="../img/banner_1.jpg" class="img-responsive img-circle" alt="Responsive image">
body>
html>
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
head>
<body>
<table class="table table-bordered table-hover">
<tr>
<th>编号th>
<th>姓名th>
<th>年龄th>
tr>
<tr>
<td>001td>
<td>张三td>
<td>18td>
tr>
<tr>
<td>002td>
<td>李四td>
<td>14td>
tr>
table>
<hr>
<hr>
<hr>
<form>
<div class="form-group">
<label for="exampleInputEmail1">Email addresslabel>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email">
div>
<div class="form-group">
<label for="exampleInputPassword1">Passwordlabel>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
div>
<div class="form-group">
<label for="exampleInputFile">File inputlabel>
<input type="file" id="exampleInputFile">
<p class="help-block">Example block-level help text here.p>
div>
<div class="checkbox">
<label>
<input type="checkbox"> Check me out
label>
div>
<button type="submit" class="btn btn-default">Submitbutton>
form>
body>
html>
# 组件：
* 导航条
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<style>
.inner {
border: 1px solid red;
}
style>
head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<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 navigationspan>
<span class="icon-bar">span>
<span class="icon-bar">span>
<span class="icon-bar">span>
button>
<a class="navbar-brand" href="#">Branda>
div>
<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="#">Linka>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="#">Actiona>li>
<li><a href="#">Another actiona>li>
<li><a href="#">Something else herea>li>
<li role="separator" class="divider">li>
<li><a href="#">Separated linka>li>
<li role="separator" class="divider">li>
<li><a href="#">One more separated linka>li>
ul>
li>
ul>
<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">Submitbutton>
form>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Linka>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="#">Actiona>li>
<li><a href="#">Another actiona>li>
<li><a href="#">Something else herea>li>
<li role="separator" class="divider">li>
<li><a href="#">Separated linka>li>
ul>
li>
ul>
div>
div>
nav>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
body>
html>
* 分页条
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<style>
.inner {
border: 1px solid red;
}
style>
head>
<body>
<nav>
<ul class="pagination">
<li class="disabled">
<a href="#" aria-label="Previous">
<span aria-hidden="true">«span>
a>
li>
<li><a href="#">1a>li>
<li class="active"><a href="#">2a>li>
<li><a href="#">3a>li>
<li><a href="#">4a>li>
<li><a href="#">5a>li>
<li>
<a href="#" aria-label="Next">
<span aria-hidden="true">»span>
a>
li>
ul>
nav>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
body>
html>
# 插件：
* 轮播图
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">
<title>Bootstrap HelloWorldtitle>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<style>
.inner {
border: 1px solid red;
}
style>
head>
<body>
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<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>
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="../img/banner_1.jpg" alt="...">
<div class="carousel-caption">
div>
div>
<div class="item">
<img src="../img/banner_2.jpg" alt="...">
<div class="carousel-caption">
...
div>
div>
<div class="item">
<img src="../img/banner_3.jpg" alt="...">
<div class="carousel-caption">
...
div>
div>
...
div>
<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">Previousspan>
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">Nextspan>
a>
div>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
body>
html>
案例
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">
<title>黑马旅游网title>
<link href="../css/bootstrap.min.css" rel="stylesheet">
<style>
.padding_top {
padding-top: 10px;
}
.search {
float: left;
border: 2px solid goldenrod;
width: 400px;
height: 35px;
padding-left: 5px;
margin-top: 15px;
}
.search_btn {
margin-top: 15px;
float: left;
border: 1px solid goldenrod;
width: 90px;
height: 35px;
background-color: goldenrod;
text-align: center;
line-height: 35px;
}
.jx {
border-bottom: 2px solid goldenrod;
padding: 5px;
}
.company {
height: 40px;
background-color: goldenrod;
text-align: center;
line-height: 40px;
font-size: 10px;
}
style>
head>
<body>
<header class="container-fluid">
<div class="row">
<img src="../img/top_banner.jpg" class="img-responsive">
div>
<div class="row padding_top">
<div class="col-md-3">
<img src="../img/logo.jpg" class="img-responsive">
div>
<div class="col-md-6">
<input placeholder="请输入线路信息" class="search">
<a href="#" class="search_btn">搜索a>
div>
<div class="col-md-3">
<img src="../img/hotel_tel.png" class="img-responsive">
div>
div>
<div class="row">
<nav class="navbar navbar-default">
<div class="container-fluid">
<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 navigationspan>
<span class="icon-bar">span>
<span class="icon-bar">span>
<span class="icon-bar">span>
button>
<a class="navbar-brand" href="#">Branda>
div>
<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="#">Linka>li>
<li><a href="#">Linka>li>
<li><a href="#">Linka>li>
<li><a href="#">Linka>li>
ul>
div>
div>
nav>
div>
<div class="row">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<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>
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="../img/banner_1.jpg" alt="...">
<div class="carousel-caption">
div>
div>
<div class="item">
<img src="../img/banner_2.jpg" alt="...">
<div class="carousel-caption">
div>
div>
<div class="item">
<img src="../img/banner_3.jpg" alt="...">
<div class="carousel-caption">
div>
div>
div>
<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">Previousspan>
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">Nextspan>
a>
div>
div>
header>
<div class="container">
<div class="row jx padding_top">
<img src="../img/icon_5.jpg">
<span>黑马精选span>
div>
<div class="row padding_top">
<div class="col-md-3">
<div class="thumbnail">
<img src="../img/jiangxuan_3.jpg">
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<font color="orange">¥888font>
div>
div>
<div class="col-md-3">
<div class="thumbnail">
<img src="../img/jiangxuan_3.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
<div class="col-md-3">
<div class="thumbnail">
<img src="../img/jiangxuan_3.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
<div class="col-md-3">
<div class="thumbnail">
<img src="../img/jiangxuan_3.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
div>
<div class="row jx padding_top">
<img src="../img/icon_6.jpg">
<span>国内游span>
div>
<div class="row padding_top">
<div class="col-md-4">
<img src="../img/guonei_1.jpg">
div>
<div class="col-md-8">
<div class="row">
<div class="col-md-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
<div class="col-md-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
<div class="col-md-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
div>
<div class="row">
<div class="col-md-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
<div class="col-md-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
<div class="col-md-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg">
<p>上海直飞三亚5天4晚自由行(春节预售+亲子/蜜月/休闲游首选+豪华酒店任选+接送机)p>
<font color="orange">¥888font>
div>
div>
div>
div>
div>
div>
<footer class="container-fluid">
<div class="row">
<img src="../img/footer_service.png" class="img-responsive">
div>
<div class="row company">
<p>江苏传智播客教育科技股份有限公司 版权所有Copyright© 2006-2018, All Rights Reserved 苏ICP备16007882p>
div>
footer>
<script src="../js/jquery-3.2.1.min.js">script>
<script src="../js/bootstrap.min.js">script>
body>
html>