GitBucket
<!doctype html><style>
body {
display: grid;
grid-auto-flow: column;
}
.item {
grid-column: span 4 / auto;
}
</style><body><div></div><div class="item">foo</div>
GitBucket
<!doctype html><style>
body {
display: grid;
grid-auto-flow: column;
}
.item {
grid-column: span 4 / auto;
}
</style><body><div></div><div class="item">foo</div>