Grid can do 1D (horizontal or vertical) or 2D (horizontal and vertical simultaneously). Flexbox can just do 1D (horizontal or vertical). So if you wanted, you

Grid can do 1D (horizontal or vertical) or 2D (horizontal and vertical simultaneously). Flexbox can just do 1D (horizontal or vertical). So if you wanted, you could just use Grid... although Flexbox could be considered slightly more striaghtforward for 1D stuff.