@keyframes pulse{
    0%, 100%{
        background-color: red;
    }
    50%{
        background-color: orange;
    }
}
@keyframes nudge{
    0%, 100%{
        transform: translate(0,0);
    }
    50%{
        transform: translate(150px, 0);
    }
    80%{
        transform: translate(-150, 0);
    }

}