in blocks/columns/columns.js [1:18]
export default function decorate(block) {
const cols = [...block.firstElementChild.children];
block.classList.add(`columns-${cols.length}-cols`);
// setup image columns
[...block.children].forEach((row) => {
[...row.children].forEach((col) => {
const pic = col.querySelector('picture');
if (pic) {
const picWrapper = pic.closest('div');
if (picWrapper && picWrapper.children.length === 1) {
// picture is only content in column
picWrapper.classList.add('columns-img-col');
}
}
});
});
}