What's wrong, .sass?

Question

Sass

.header-two 
    z-index: 9
    position: relative
    height: 200px
    width: 100%
    float: left
    background-color: #333333
    border-bottom: 3px solid #F39B36
    
    &:after 
        top: -30px
        position: absolute
        content: ""
        color: #EEEEEE
        height: 190px
        width: 100%
        background: url('img/cosmos1.svg') repeat-x 0 100%
        animation: way linear 120s infinite

        @keyframes way 
                   from background-position: -1500px 100% 0 0
                   to   background-position: 0 100%

Answer 1

No transfers:

@keyframes way 
      from 
            background-position: -1500px 100% 0 0
      to
            background-position: 0 100%