fpc/packages/fcl-css/tests/css/class.css

.rangeProgress {
    background-color: blue;
}

.rangeProgress:hover {
    color: red;
}

.rangeProgress::boot {
    color: green;
}

input:enabled:read-write:-webkit-any(:focus,:hover)::-webkit-clear-button {
    opacity: 1;
    pointer-events: auto;
}

.box {
    color: red;
}