CSS Grid: Complete Two-Dimensional Layouts

Why CSS Grid?

CSS Grid is the most powerful 2-dimensional layout system in CSS, managing both rows AND columns simultaneously.

/* Production Responsive Auto-Fit Grid (Zero Media Queries Required!) */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

How repeat(auto-fit, minmax(280px, 1fr)) Works:

1. If viewport is wide enough for 4 columns of 280px, it renders 4 columns.
2. When resized smaller, columns wrap automatically without breaking!