Flexbox vs Grid: When to Use Each with Code Examples

## The Dimensional Approach

The technical difference is simple: **Flexbox** is one-dimensional (row OR column) and **Grid** is two-dimensional (row AND column at the same time).

## When to Use Each?

Use **Grid** for the page skeleton. For example, a product grid:

.product-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

Use **Flexbox** for aligning internal elements, such as a navigation bar:

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

## The Winning Combination

You don't have to choose one. The most professional approach is using Grid for the macro structure (header, main, sidebar, footer) and Flexbox for micro components inside those cells. This combination gives you total control without cluttering the code.