The baseline grid is set at 4px . For more information about the baseline, see how this influences typography.
Metrics and Keylines
Baseline Grid
Image Ratios
Images will conform the following aspect ratios.
32:6
42:9
32:9
16:5
3:1
25:9
12:5
20:9
2:1
16:9
12:7
5:3
8:5
3:2
1:1
7:8
3:4
5:7
2:3
3:5