The CSS Grid vs Flexbox debate is as old as the properties themselves. And the answer has always been the same: they solve different problems.
Flexbox = One-dimensional layout (row OR column)
Grid = Two-dimensional layout (row AND column)
That's it. That's the whole debate. Everything else is application.
Navigation bars, button groups, centering content — anything that flows in one direction:
/* Perfect flexbox use case: navbar */
.navbar {
display: flex;
align-items: center;
justify-content: space-between;
gap: 1rem;
}
/* Perfect flexbox use case: centering */
.center-me {
display: flex;
align-items: center;
justify-content: center;
}Page layouts, card grids, any 2D arrangement:
/* Perfect grid use case: card layout */
.card-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
gap: 1.5rem;
}
/* Perfect grid use case: page layout */
.page {
display: grid;
grid-template-areas:
"header header"
"sidebar main"
"footer footer";
grid-template-rows: auto 1fr auto;
min-height: 100vh;
}/* Grid handles the big picture */
.dashboard {
display: grid;
grid-template-columns: 240px 1fr;
}
/* Flexbox handles the micro layout inside */
.dashboard .sidebar nav {
display: flex;
flex-direction: column;
gap: 0.5rem;
}Subgrid is now fully supported in all major browsers. This means nested grids can participate in their parent's track sizes — something that was impossiblebefore.
.card-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
}
.card {
display: grid;
grid-row: span 3;
grid-template-rows: subgrid; /* 🎉 tracks align across cards */
}Developer sees a layout "This needs Grid" Makes it in Flexbox anyway It works but only on their screen size
Know your tools. Use the right one. Both are good.