martijnversluis/ChordFiddle

.LineNumbers
  overflow: auto
  text-align: right

  &__error
    color: red
    display: inline-block
    position: relative

    &:after
      content: '⚠️'
      font-size: 22px
      margin-top: -1px
      position: absolute
      right: -26px
      top: 50%
      transform: translate(0, -50%)