Bootstrap_栅格系统_注意事项与Bootstrap_全局CSS样式_按钮&图片

Bootstrap_栅格系统_注意事项

      

        栅格系统_注意事项:

            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,会一个元素沾满一整行 

    

 

 

 

Bootstrap_全局CSS样式_按钮&图片

 

          全局CSS样式

              按钮:class="btn btn-default"

              图片

                 img-responsive:在任意尺寸都占100%

                   <img src="..." alt="..." class="img-rounded">:方形

                 <img src="..." alt="..." class="img-circle"> 椭圆形

                   <img src="..." alt="..." class="img-thumbnail">:相框形

<!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 HelloWorld</title>

    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">


    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery,所以必须放在前边) -->
    <script src="js/jquery-3.2.1.min.js"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="js/bootstrap.min.js"></script>
    <style>

    </style>
</head>
<body>


<a class="btn btn-default"  href="#" >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>

<!-- Standard button -->
<button type="button" class="btn btn-default">(默认样式)Default</button>

<!-- Provides extra visual weight and identifies the primary action in a set of buttons -->
<button type="button" class="btn btn-primary">(首选项)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">(一般信息)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">(危险)Danger</button>

<!-- Deemphasize a button by making it look like a link while maintaining button behavior -->
<button type="button" class="btn btn-link">(链接)Link</button>


<br>
<img src="img/a.jpg" class="img-responsive">
<img src="img/a.jpg" class="img-responsive img-rounded">
<img src="img/a.jpg" class="img-responsive img-circle">
<img src="img/a.jpg" class="img-responsive img-thumbnail">





</body>
</html>

 

 

      

 

posted @ 2022-11-26 15:58  zj勇敢飞,xx永相随  阅读(20)  评论(0编辑  收藏  举报