css length unit `ch` test

0 Serif width 10ch

0 sans-serif width 10ch

0 游ゴシックetc width 10ch

Font Family : Serif

Font Size

Font Size 10 ch

Font Size 5 ch

Font Size 1 ch

Width

width 20ch

width 10ch

width 1ch

Font Family : Sans Serif

Font Size

Font Size 10 ch

Font Size 5 ch

Font Size 1 ch

Width

width 20ch

width 10ch

width 1ch