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                <div class="tbl">
  <div class="cell">
    <a href="" target="_blank" class="tweet">


                html, body
  height 100%

  box-sizing border-box

  position relative
  display inline-block
  height 20px
  padding 0 6px
  color #fff
  cursor pointer
  background-color #1b95e0
  border-radius 3px
  box-sizing border-box
  text-decoration none
  transition background-color .2s ease
  //transform scale(1)
    position relative
    top 4px
    display inline-block
    vertical-align top
    width 18px
    height 11px
    background-image url("")
    background-repeat no-repeat
    background-position 0 0
    background-size 144px 11px  
    position relative
    top 4px
    left -2px
    vertical-align top
    font-family 'Helvetica Neue', Arial, sans-serif
    font-weight 500
    font-size 11px
    background-color #0c7abf
      animation tweet .6s steps(7) infinite

  display table
  width 100%
  height 100%

  display table-cell
  vertical-align middle
  text-align center

@keyframes tweet
    background-position -126px 0


                // Not allowed: 

// more ->