CSS Grid
Grid container
Setting display: grid creates a grid container and all direct
children become grid items. The items are by default placed in rows
and span the entire width of the container. Since we have not
specified how many columns the grid should have, it defaults to a
single column.
Code example
<div class="wrapper"><div class="box red"></div><div class="box green"></div><div class="box blue"></div></div>
.wrapper {display: grid;}
redgreenblue