Section 1 edit

Image superposition (as done by {{Ribbon devices}} et. al.):

Section 2 edit

All with leading  :

 E
                                          E (41x )
 ABCDEFGHIJKLMNOP
 abcdefghijklmnopqrstu
 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
 E 96px
 E 1in
 E 2.54cm
 E 72pt
 E 7.8em
 E 6pc
 E 10em
 E 123px
 E 50em
 E 613px
 E 97em
 E 1188px
1 em = 12.25 px, 1 br-line = 19.583_ px = 1.60em

 E
                                          E (41x )
 ABCDEFGHIJKLMNOPQRSTU
 abcdefghijklmnopqrstu
 1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
 E 96px
 E 1in
 E 2.54cm
 E 72pt
 E 7.8em
 E 6pc
 E 10em
 E 123px
 E 50em
 E 613px
 E 97em
 E 1188px
1 em = 12.25 px, 1 br-line = 21.{081}_ px = 1.72em

Section 3 edit

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 50xE 400px 8px
ENNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNE 50xN 450px 9px
EMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMME 50xM 450px 9px
E!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!E 50x! 150px 3px
EiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiE 50xi 150px 3px
E00000000000000000000000000000000000000000000000000E 50x0 350px 7px
EggggggggggggggggggggggggggggggggggggggggggggggggggE 50xg 350px 7px
E--------------------------------------------------E 50xU+002D 200px 4px (hyphen)
E––––––––––––––––––––––––––––––––––––––––––––––––––E 50xU+2013 350px 7px (endash)
E——————————————————————————————————————————————————E 50xU+2014 600px 12px (emdash)
E−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−E 50xU+2212 350px 7px (minus)
E                                                  E 25x(U+0020 U+00A0) 150px 3px, 3px (sp, nbsp)
E                                                  E 50xU+00A0 150px 3px (nbsp)
E                                                  E 50xU+2002 300px 6px (enspace)
E                                                  E 50xU+2003 600px 12px (emspace)
E                                                  E 50xU+2009 100px 2px (thin space)


EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 50xE 350px 7px
ENNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNE 50xN 350px 7px
EMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMME 50xM 350px 7px
E!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!E 50x! 350px 7px
EiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiE 50xi 350px 7px
E00000000000000000000000000000000000000000000000000E 50x0 350px 7px
EggggggggggggggggggggggggggggggggggggggggggggggggggE 50xg 350px 7px
E--------------------------------------------------E 50xU+002D 350px 7px (hyphen)
E––––––––––––––––––––––––––––––––––––––––––––––––––E 50xU+2013 350px 7px (endash)
E——————————————————————————————————————————————————E 50xU+2014 350px 7px (emdash)
E−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−E 50xU+2212 350px 7px (minus)
E                                                  E 25x(U+0020 U+00A0) 350px 7px, 7px (sp, nbsp)
E                                                  E 50xU+00A0 350px 7px (nbsp)
E                                                  E 50xU+2002 300px 6px (enspace)
E                                                  E 50xU+2003 600px 12px (emspace)
E                                                  E 50xU+2009 100px 2px (thin space)