a { margin-bottom: 10px }
b { margin-bottom: 0px }
c { margin-bottom: 0 }
d { margin-bottom: 5% }
e { margin-bottom: 0% }
f { margin-bottom: auto }
g { margin-bottom: -10px }
h { margin-bottom: -10% }
y { margin-bottom: initial }
z { margin-bottom: inherit }