swc/crates/swc_css_minifier/tests/fixture/compress-keyframe-selector/input.css

@keyframes slide-right {
    from {
        margin-left: 0px;
    }
    50% {
        margin-left: 110px;
        opacity: 1;
    }
    50% {
        opacity: 0.9;
    }
    to {
        margin-left: 200px;
    }
}

@keyframes slide-right-upper-case {
    FROM {
        margin-left: 0px;
    }
    50% {
        margin-left: 110px;
        opacity: 1;
    }
    50% {
        opacity: 0.9;
    }
    TO {
        margin-left: 200px;
    }
}

@keyframes slide-right-one {
    0% {
        margin-left: 0px;
    }
    50% {
        margin-left: 110px;
        opacity: 1;
    }
    50% {
        opacity: 0.9;
    }
    100% {
        margin-left: 200px;
    }
}

@keyframes slide-right-two {
    0% {
        margin-left: 0px;
    }
    50% {
        margin-left: 110px;
        opacity: 1;
    }
    50% {
        opacity: 0.9;
    }
    100.0000% {
        margin-left: 200px;
    }
}

@keyframes slide-right-three {
    0%, 50% {
        margin-left: 0px;
    }
    60%, 100% {
        margin-left: 200px;
    }
}

@keyframes "foo" {
    0% {
        margin-left: 0px;
    }
    100% {
        margin-left: 200px;
    }
}

@keyframes "initial" {
    0% {
        margin-left: 0px;
    }
    100% {
        margin-left: 200px;
    }
}