Question

我正试图在右下方设置一个div。但我不知道哪个设备屏幕（大或小），所以我认为我应该保持正确：100px;或类似的东西。我不能保留左边：900px或400px因为我不知道设备有多大。我正在尝试设置属性css margin-right但不成功。这是我的测试代码。请帮帮我。同样，margin-bottom在这里看起来是非法的。 This picture shows my goal

<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://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
 <style>
 .worldcup{
   margin-right: 40%;
 }
 .euro{
   margin-left: 40%;
 }
 </style>
</head>
<body >

<div><p class="worldcup">worldcup</p></div>
<div><p class="euro">euro</p></div>

</body>
</html>

Answer 1

put text-align：right;它可以解决你的问题

<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://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
 <style>
 .worldcup{
   margin-right: 40%;
 }
 .euro{
   margin-left: 40%;
text-align: right;
float: right;
 }
 </style>
</head>
<body >

<div><button class="worldcup">worldcup</button></div>
<div><button class="euro">euro</button></div>

</body>
</html>

Answer 2

这是它的引导代码：

<!DOCTYPE html>
  <!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
  <!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
  <!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
  <!--[if gt IE 8]><!-->
  <html class="no-js">
  <!--<![endif]-->

  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title></title>
    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

    <!-- jQuery library -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

    <!-- Latest compiled JavaScript -->
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  </head>

  <body>
    <!--[if lt IE 7]>
      <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
    <![endif]-->
    <div class="container">
      <div class="row">
        <div class="col-xs-4 col-sm-4 col-lg-4 col-xl-4" style="text-align: left">
          WORLDCUP
          <div class="col-xs-4 col-sm-4 col-lg-4 col-xl-4">

          </div>
          <div class="col-xs-4 col-sm-4 col-lg-4 col-xl-4">

          </div>
        </div>

      </div>
      <div class="row">
        <div class="col-xs-4 col-sm-4 col-lg-4 col-xl-4">

        </div>
        <div class="col-xs-4 col-sm-4 col-lg-4 col-xl-4">

        </div>
        <div class="col-xs-4 col-sm-4 col-lg-4 col-xl-4" style="text-align: right">
          EURO
        </div>
      </div>
    </div>
    <script src="" async defer></script>
  </body>

  </html>

Bootstrap 4似乎只是让我留下边缘，而不是MARGIN-RIGHT？

2 个答案: