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法律研究在 Bootstrap 中以相反的顺序包装不同屏幕上的弹性元素
如要在不同屏幕尺寸上以相反的顺序包装弹性元素，你需要使用 flex-*wrap-reverse 类。
此类提供在小、中、大和超大屏幕尺寸上反转和包装弹性元素的选项 −
小屏幕尺寸（flex-sm-wrap-reverse）
<div class="d-flex flex-sm-wrap-reverse bg-primary"> <div class="p-2 border">Goal 1</div> <div class="p-2 border">Goal 2</div> <div class="p-2 border">Goal 3</div> <div class="p-2 border">Goal 4</div> . . . </div>
大屏幕尺寸（flex-lg-wrap-reverse）
<div class="d-flex flex-lg-wrap-reverse bg-primary"> <div class="p-2 border">Goal 1</div> <div class="p-2 border">Goal 2</div> <div class="p-2 border">Goal 3</div> <div class="p-2 border">Goal 4</div> . . . </div>
你可以尝试运行以下代码来使用 flex-*wrap-reverse 类 −
示例
<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <div class="container mt-3"> <h2>Wrap</h2> <p>Flex Wrap</p> <div class="d-flex flex-wrap bg-primary"> <div class="p-2 border">Goal 1</div> <div class="p-2 border">Goal 2</div> <div class="p-2 border">Goal 3</div> <div class="p-2 border">Goal 4</div> <div class="p-2 border">Goal 5</div> <div class="p-2 border">Goal 6</div> <div class="p-2 border">Goal 7</div> <div class="p-2 border">Goal 8</div> <div class="p-2 border">Goal 9</div> <div class="p-2 border">Goal 10</div> <div class="p-2 border">Goal 11</div> <div class="p-2 border">Goal 12</div> <div class="p-2 border">Goal 13</div> <div class="p-2 border">Goal 14</div> <div class="p-2 border">Goal 15</div> <div class="p-2 border">Goal 16</div> <div class="p-2 border">Goal 17</div> <div class="p-2 border">Goal 18</div> <div class="p-2 border">Goal 19</div> <div class="p-2 border">Goal 20</div> </div><br> <p>Flex Wrap - Reverse</p> <div class="d-flex flex-wrap-reverse bg-primary"> <div class="p-2 border">Goal 1</div> <div class="p-2 border">Goal 2</div> <div class="p-2 border">Goal 3</div> <div class="p-2 border">Goal 4</div> <div class="p-2 border">Goal 5</div> <div class="p-2 border">Goal 6</div> <div class="p-2 border">Goal 7</div> <div class="p-2 border">Goal 8</div> <div class="p-2 border">Goal 9</div> <div class="p-2 border">Goal 10</div> <div class="p-2 border">Goal 11</div> <div class="p-2 border">Goal 12</div> <div class="p-2 border">Goal 13</div> <div class="p-2 border">Goal 14</div> <div class="p-2 border">Goal 15</div> <div class="p-2 border">Goal 16</div> <div class="p-2 border">Goal 17</div> <div class="p-2 border">Goal 18</div> <div class="p-2 border">Goal 19</div> <div class="p-2 border">Goal 20</div> </div><br> <p>Flex Wrap - Reverse - Small Width</p> <div class="d-flex flex-sm-wrap-reverse bg-primary"> <div class="p-2 border">Goal 1</div> <div class="p-2 border">Goal 2</div> <div class="p-2 border">Goal 3</div> <div class="p-2 border">Goal 4</div> <div class="p-2 border">Goal 5</div> <div class="p-2 border">Goal 6</div> <div class="p-2 border">Goal 7</div> <div class="p-2 border">Goal 8</div> <div class="p-2 border">Goal 9</div> <div class="p-2 border">Goal 10</div> <div class="p-2 border">Goal 11</div> <div class="p-2 border">Goal 12</div> <div class="p-2 border">Goal 13</div> <div class="p-2 border">Goal 14</div> <div class="p-2 border">Goal 15</div> <div class="p-2 border">Goal 16</div> <div class="p-2 border">Goal 17</div> <div class="p-2 border">Goal 18</div> <div class="p-2 border">Goal 19</div> <div class="p-2 border">Goal 20</div> </div> <p>Flex Wrap - Reverse - Large Width</p> <div class="d-flex flex-lg-wrap-reverse bg-primary"> <div class="p-2 border">Goal 1</div> <div class="p-2 border">Goal 2</div> <div class="p-2 border">Goal 3</div> <div class="p-2 border">Goal 4</div> <div class="p-2 border">Goal 5</div> <div class="p-2 border">Goal 6</div> <div class="p-2 border">Goal 7</div> <div class="p-2 border">Goal 8</div> <div class="p-2 border">Goal 9</div> <div class="p-2 border">Goal 10</div> <div class="p-2 border">Goal 11</div> <div class="p-2 border">Goal 12</div> <div class="p-2 border">Goal 13</div> <div class="p-2 border">Goal 14</div> <div class="p-2 border">Goal 15</div> <div class="p-2 border">Goal 16</div> <div class="p-2 border">Goal 17</div> <div class="p-2 border">Goal 18</div> <div class="p-2 border">Goal 19</div> <div class="p-2 border">Goal 20</div> </div> </div> </body> </html>
更新时间： 18-6 月-2020
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