How do you achieve multi-column layouts in CSS, and what are the limitations?

First, one common method I've frequently used is the CSS Grid Layout. It's an incredibly powerful and flexible system designed for two-dimensional layouts. By defining a grid structure and placing elements into it, I can easily create complex multi-column layouts that are both responsive and maintainable. However, a limitation I've encountered with CSS Grid is browser compatibility. Although most modern browsers support it, there are still inconsistencies, especially in older versions, which require fallback solutions or feature detection to ensure a consistent user experience...