What are the limitations of using position:fixed in CSS for fixing the table header in PHP?

When using position:fixed in CSS to fix the table header in PHP, the main limitation is that the fixed header may not align perfectly with the table columns when scrolling horizontally. To solve this issue, you can use JavaScript to dynamically set the width of the fixed header cells based on the width of the corresponding table cells. 

<script>
    window.onload = function() {
        var table = document.getElementById('table');
        var header = document.getElementById('header');

        for (var i = 0; i < table.rows[0].cells.length; i++) {
            header.rows[0].cells[i].style.width = table.rows[0].cells[i].clientWidth + 'px';
        }
    };
</script>

Keywords

position:fixed CSS table header limitations PHP

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