Are there best practices for maintaining consistent column widths in PHP when content is hidden or revealed?

When content is hidden or revealed in PHP, it can affect the layout of the page and cause columns to have inconsistent widths. To maintain consistent column widths, one approach is to set a fixed width for the columns using CSS and ensure that the content within each column does not exceed this width.

<div style="display: flex;">
    <div style="width: 200px; overflow: hidden;">Column 1 content</div>
    <div style="width: 200px; overflow: hidden;">Column 2 content</div>
</div>