Chartist Aspect Ratio Demo
https://gionkunz.github.io/chartist-js/getting-started.html
.ct-square 1
.ct-minor-second 15:16
.ct-major-second 8:9
.ct-minor-third 5:6
.ct-major-third 4:5
.ct-perfect-fourth 3:4
.ct-perfect-fifth 2:3
.ct-minor-sixth 5:8
.ct-golden-section 1:1.618
.ct-major-sixth 3:5
.ct-minor-seventh 9:16
.ct-major-seventh 8:15
.ct-octave 1:2
.ct-major-tenth 2:5
.ct-major-eleventh 3:8
.ct-major-twelfth 1:3
.ct-double-octave 1:4