@mixin color($color: black)
    @if $color == black
        color: white
        background-color: green
    @else if $color == white
        color: red
        background-color: black
    @else
        color: #c6c6c6
        background-color: #00ffff
    &::after
        content: 'Colored'
        color: $color
        background-color: blue
        &:hover
            transform: scale(2)
    &:hover
        transform: translateX(10%)