Accoutrement 2.1.1

a

scss
a {
  background-color: transparent;

  &:active,
  &:hover {
    outline: 0;
  }
}

Remove the gray background color from active links in IE 10. Improve readability of focused elements when they are also in an active/hover state.

abbr

scss
abbr {
  &[title] {
    border-bottom: 1px dotted;
  }
}

Address styling not present in IE 8/9/10/11, Safari, and Chrome.

b, strong

scss
b,
strong {
  font-weight: bold;
}

Address style set to bolder in Firefox 4+, Safari, and Chrome.

code, kbd, pre, samp

scss
code,
kbd,
pre,
samp {
  font-family: monospace;
  font-size: inherit;
}

Specify the font family of code elements.

dfn

scss
dfn {
  font-style: italic;
}

Address styling not present in Safari and Chrome.

nav

scss
nav {
  ol,
  ul {
    list-style: none;
  }
}

Remove list style of nav lists.

small

scss
small {
  font-size: 0.75em;
}

All browsers…

sub, sup

scss
sub,
sup {
  font-size: 0.75em;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

Prevent sub and sup affecting line-height in all browsers.

sup

scss
sup {
  top: -0.5em;
}

Move super-script up.

sub

scss
sub {
  bottom: -0.25em;
}

Move sub-script down.