栅格布局演示
item1
item2
item3
item4
item5
还原
display
grid
inline-grid
grid-template-columns
1fr 1fr 1fr
[c1s] 1fr [c2s] 1fr [c3s] 1fr [c3e]
grid-template-rows
[r1s] 1fr [r2s] 1fr [r2e]
1fr 2fr
【item1】grid-row
auto
r1s / r2e
【item1】grid-column
auto
c1s / c3e