Where Flexbox handles one dimension well, CSS Grid was purpose-built for two-dimensional layout — rows and columns together, without the nested-div workarounds layouts needed before it.
.layout {
display: grid;
grid-template-columns: 250px 1fr;
grid-template-rows: auto 1fr auto;
grid-template-areas:
"sidebar header"
"sidebar main"
"sidebar footer";
min-height: 100vh;
}
.header { grid-area: header; }
.sidebar { grid-area: sidebar; }
.main { grid-area: main; }
.footer { grid-area: footer; }
/* Responsive grid without a single media query */
.gallery {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
gap: 1rem;
}
repeat(auto-fill, minmax(200px, 1fr)) is one of Grid’s most useful patterns — it automatically fits as many 200px-minimum columns as the container allows, reflowing responsively without any breakpoints at all.