CSS Grid Split Screen Hero Generator
Copy on one side, artwork on the other, flipping to stacked on mobile.
1040px
11.1fr20.9fr3
11fr2
media1 / 2 / 2 / 3
copy1 / 1 / 2 / 2
Named areas. The CSS is a picture of the layout, and only the properties that actually change get repeated inside each media query.
.hero {
display: grid;
grid-template-columns: 1fr;
grid-template-rows: auto auto;
gap: 24px;
grid-template-areas:
"media"
"copy";
}
.hero > .media { grid-area: media; }
.hero > .copy { grid-area: copy; }
@media (min-width: 860px) {
.hero {
grid-template-columns: 1.1fr 0.9fr;
grid-template-rows: 1fr;
gap: 48px;
grid-template-areas:
"copy media";
}
}
How this layout works
A 50/50 split is the obvious version. An asymmetric one — 1.1fr 0.9fr — usually looks better, because the text side needs a little more room than the image to feel balanced.
On mobile the media goes first so the page opens with an image rather than a wall of type. That is a real reordering, so check that it still reads sensibly to a screen reader.
Every property used here is listed in the CSS Grid cheat sheet, with the reason to reach for it.
Frequently asked questions
Should a split hero be exactly 50/50?
Usually not. An asymmetric split like
1.1fr 0.9fr looks more balanced, because the text side needs slightly more room than the image to feel equally weighted.How do I center a grid in CSS?
Use
justify-content: center on the grid container to centre the whole grid inside it, and margin-inline: auto with a max-width to centre the container in the page. These are different jobs: the first moves the tracks within the container, the second moves the container itself.How do I center items inside a CSS grid?
Set
place-items: center on the container. That is shorthand for align-items plus justify-items, and it centres every item inside its own cell on both axes. For a single item, use place-self: center on that item instead.How do I make a CSS grid responsive?
Use
grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)) and it reflows at every width with no media queries at all. Add breakpoints only when the exact column count matters, or when the layout has to change shape rather than just wrap.When should I use CSS Grid instead of Flexbox?
Use Grid when things must line up in two directions at once, and Flexbox when content flows along one axis. A page skeleton or dashboard is Grid; a navbar or row of buttons is Flexbox. They nest: Grid for the page, Flexbox inside the cells.