*
  @include box-sizing(border-box)

body
  font: 1em "Helvetica Neue", sans-serif
  margin: 0

#app
  max-width: 320px
  margin: 0 auto
  padding-top: 2.5em
  padding-bottom: 5.625em

header
  position: fixed
  top: 0
  width: 100%
  background: rgba(248, 248, 248, 0.95)
  border-bottom: 1px solid rgba(0, 0, 0, 0.1)
  z-index: 1
  #library
    position: absolute
    left: 10px
    top: 8px
    @include button
  h1
    text-align: center
    font-size: 1em