Same container as a typical card grid, but switched to auto-fit: repeat(auto-fit, minmax(200px, 1fr)), 900px wide, no gap, 2 items. How wide is each item?
.grid {
display: grid;
width: 900px;
gap: 0;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
/* 2 child items */