How to use bootstrap components
If you want to know more about bootstrap, you can click: Bootstrap Tutorial
To use the Bootstrap component, you can visit the component library https://v3.bootcss.com/components/. We can view all the component information of bootstrap and use it. The following is a tutorial on how to use several components.
1. Use of font icons
The names under these icons are their corresponding class names , we can directly access the class name when using it:
<!DOCTYPE html>
<html>
<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个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<title>Bootstrap字体图标</title>
<!-- 第一步：加载Bootstrap的层级样式表 -->
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<!-- 字体图标的引用 -->
<span class="glyphicon glyphicon-euro"></span>
<!-- 第二步：jQuery库，同时加载该库必须在加载bootstrap.min.js之前 (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
<script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
<!-- 第三步：加载 Bootstrap 的核心库。 -->
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</body>
</html>2. Use of button components
Note:There are seven button styles: btn-default, btn-primary, btn-info, btn-success, btn-warning, btn-danger, and btn-link;
The button sizes include btn-lg, btn-sm , btn-xs three
In addition, types such as input can also set the button style in bootstrap.
<!-- 不同按钮样式 -->
<button type="button" class="btn btn-default">默认</button>
<button type="button" class="btn btn-primary btn-lg">primary</button>
<button type="button" class="btn btn-info btn-sm">信息</button>
<button type="button" class="btn btn-success btn-xs">确定</button>
<button type="button" class="btn btn-warning">提示</button>
<button type="button" class="btn btn-danger">取消</button>
<button type="button" class="btn btn-link">链接</button>
<hr>
<!-- 按钮类设置 -->
<a href="" class="btn btn-default" role="button">Link</a>
<button class="btn btn-default" type="submit"><span class="glyphicon glyphicon-plus"></span> Button</button>
<input class="btn btn-danger" type="button" value="Input">
<input class="btn btn-default" type="submit" value="Submit">3. Button drop-down menu
First, there must be a drop-down menu div container, and set the style to dropdown; secondly, the button of the drop-down menu The style needs to set dropdown-toggle, the data-toggle attribute value is dropdown, and an id must be set; finally, the aria-labelledby attribute value in ul of the drop-down menu corresponds to the id value in the button!
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown">Dropdown<span class="caret"></span></button>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
<!-- 下拉菜单标题 -->
<li class="dropdown-header">Dropdown header</li>
<!-- 下拉菜单内容 -->
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<!-- 分割线 -->
<li role="separator" class="divider"></li>
<li class="disabled"><a href="#">Separated link</a></li>
</ul>
</div>4. Button group and nesting
The size of the button group can also be set: btn-group-lg, btn-group-sm , btn-group-xs
<div class="btn-group btn-group-lg" 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>
<!--嵌套下拉按钮菜单-->
<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>5. Vertical button group
A btn-group-vertical class can achieve
<div class="btn-group-vertical" 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>
6. Align button group
<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>
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