使用css更容易

table tbody { display:block; max-height:450px; overflow-y:scroll; }
table thead, table tbody tr { display:table; width:100%; table-layout:fixed; }

对于满高的表格(页面滚动，而不是表格)

注意:我移动整个<thead>…</ header >因为在我的例子中，我有两行(标题和过滤器)

使用JS (jQuery)

$( function() {

            let marginTop = 0; // Add margin if the page has a top nav-bar
            let $thead = $('.table-fixed-head').find('thead');
            let offset = $thead.first().offset().top - marginTop;
            let lastPos = 0;

            $(window).on('scroll', function () {

                if ( window.scrollY > offset )
                {
                    if ( lastPos === 0 )
                    {
                        // Add a class for styling
                        $thead.addClass('floating-header');
                    }

                    lastPos = window.scrollY - offset;
                    $thead.css('transform', 'translateY(' + ( lastPos ) + 'px)');
                }
                else if ( lastPos !== 0 )
                {
                    lastPos = 0;
                    $thead.removeClass('floating-header');
                    $thead.css('transform', 'translateY(' + 0 + 'px)');
                }
            });
});

CSS(仅用于样式)

 thead.floating-header>tr>th {
       background-color: #efefef;
 }

thead.floating-header>tr:last-child>th {
       border-bottom: 1px solid #aaa;
}

一种没有固定宽度的简单方法:

.myTable tbody{
  display:block;
  overflow:auto;
  height:200px;
  width:100%;
}
.myTable thead tr{
  display:block;
}

源

现在，在onLoad上，调整宽度，只需添加这个jquery脚本:

$.each($('.myTable tbody tr:nth(0) td'), function(k,v) {
    $('.myTable thead th:nth('+k+')').css('width', $(v).css('width'));
});

把表格像这样放在div里面，使表格垂直滚动。将overflow-y更改为overflow-x，使表可水平滚动。只是溢出使表可以水平和垂直滚动。

<div style="overflow-y: scroll;"> 
    <table>
    ...
    </table>
</div>

不需要用div包装它…

CSS:

tr {
width: 100%;
display: inline-table;
table-layout: fixed;
}

table{
 height:300px;              // <-- Select the height of the table
 display: block;
}
tbody{
  overflow-y: scroll;      
  height: 200px;            //  <-- Select the height of the body
  width: 100%;
  position: absolute;
}

Bootply: https://www.codeply.com/p/nkaQFc713a

清洁解决方案(仅适用于CSS)

.table-fixed tbody {
    display:block;
    height:85vh;
    overflow:auto;
}
.table-fixed thead, .table-fixed tbody tr {
    display:table;
    width:100%;
}


<table class="table table-striped table-fixed">
    <thead>
        <tr align="center">
            <th>Col 1</th>
            <th>Col 2</th>
            <th>Col 3</th>
            <th>Col 4</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>Content 1</td>
            <td>Content 1</td>
            <td>Content 1</td>
            <td>Content 1</td>
        </tr>
        <tr>
            <td>Longer Content 1</td>
            <td>Longer Content 1</td>
            <td>Longer Content 1</td>
            <td>Longer Content 1</td>
        </tr>
    </tbody
</table