Question

我看到了另一个这样的问题，但答案对我没有用，我不知道为什么。当超过50px时，为什么我的popover内容不滚动？还有一个侧面问题：在我的变量＆＃39; a＆＃39;中，我的新行不在popover中工作。谁知道为什么？

＆＃13;

var a = "hello \n hello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \n hello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \nhello \n";
$(function() {
  $('[data-toggle="popover"]').popover()
});

$("#button1").attr('data-content', a);

＆＃13;

.popover-content {
  height: 10px;
  overflow-y: auto;
}

＆＃13;

<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.4/js/tether.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>

<button id="button1" type="button" class="btn btn-lg btn-danger" data-toggle="popover" title="Popover title" data-content="Hello">Click to toggle popover</button>

＆＃13;

Answer 1

您定位错误的课程。正确的类是popover-body：

.popover-body {
    height: 50px;
    overflow-y: auto;
    white-space:pre-wrap;
}

https://jsfiddle.net/gx27dbv3/

如何使Bootstrap 4 popovers可滚动

1 个答案: