html
  font-size 100%
  -ms-text-size-adjust 100%
  -webkit-text-size-adjust 100%

html, body
  height 100%
  box-sizing border-box

article,
aside,
details, // 1
figcaption,
figure,
footer,
header,
main, // 2
menu,
nav,
section,
summary // 1
  display block

audio:not([controls])
  display none
  height 0

progress
  vertical-align baseline


template, // 1
[hidden]
  display none

a
  -webkit-text-decoration-skip objects

a
  &:active,
  &:hover
    outline-width 0

abbr[title]
  border-bottom none // 1
  text-decoration underline // 2
  text-decoration underline dotted // 2

b,
strong
  font-weight inherit

b,
strong
  font-weight bolder

dfn
  font-style italic

small
  font-size 80%

sub,
sup
  font-size 75%
  line-height 0
  position relative
  vertical-align baseline

sub
  bottom -0.25em

sup
  top -0.5em

code,
kbd,
pre,
samp
  font-family   font-family Consolas, 'Liberation Mono', Menlo, Courier, monospace, monospace // 1

img
  border-style none

svg:not(:root)
  overflow hidden

hr
  box-sizing content-box // 1
  height 0 // 1
  overflow visible // 2

small, .small
  font-size 0.8em

button
  -webkit-appearance none
  outline none


input[type="search"]
  -webkit-appearance none

input
  margin 0 0 0 0

@-ms-viewport
  width device-width