some l-lines (hor.) are not shown

[abegehr]

example: http://localhost:3000/?p=(3_4)(6_4)(3_4)(6_4)(3_4)&q=(3_2)(6_3)(6_5)(3_6)

[abegehr]

public example url: http://abegehr.github.io/frechet/?p=(3_4)(6_4)(3_4)(6_4)(3_4)&q=(3_2)(6_3)(6_5)(3_6)