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Html 引导中所有表行元素垂直居中_Html_Css_Twitter Bootstrap_Bootstrap 4 - Fatal编程技术网

Html 引导中所有表行元素垂直居中

Html 引导中所有表行元素垂直居中,html,css,twitter-bootstrap,bootstrap-4,Html,Css,Twitter Bootstrap,Bootstrap 4,我似乎无法垂直对齐引导表行中所有不同类型的元素。我希望“选择”下拉列表、说明文本和按钮都垂直居中显示。我需要做什么来解决这个问题 代码如下: <!doctype html> <html lang="en"> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=dev

我似乎无法垂直对齐引导表行中所有不同类型的元素。我希望“选择”下拉列表、说明文本和按钮都垂直居中显示。我需要做什么来解决这个问题

代码如下:

<!doctype html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

    <title>testing...</title>
    <style>
        td {
            height: 1em;
            vertical-align: middle;
        }
    </style>
  </head>
  <body>
    <div style="margin-left: 0px">    
    <table class="table table-striped table-hover">
        <colgroup>
                <col span="1" style="width: 4em">
                <col span="1" style="width: 15em">
                <col span="1" style="width: 4em">
        </colgroup>
        <tbody>
            <tr scope="row"><td>
                    <select class="form-control" id="qty">
                      <option>0</option>
                      <option>1</option>
                      <option>2</option>
                      <option>3</option>
                    </select>
            </td><td>Apples</td><td>10lb</td><td><button type="button" class="btn btn-primary btn-sm">Add</button></td></tr>        
    </table>
    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
  </body>
</html>

测试。。。
运输署{
高度:1米;
垂直对齐:中间对齐;
}
0
1.
2.
3.
应用程序10lbadd

0
1.
2.
3.
应用程序10lbadd

设置
垂直对齐:中间
到.table类表格数据

    .table td {
        height: 1em;
        vertical-align: middle;
    }

测试。。。
.表td{
高度:1米;
垂直对齐:中间对齐;
}
0
1.
2.
3.
苹果
10磅
添加
    .table td {
        height: 1em;
        vertical-align: middle;
    }