mark.has-inline-color.has-marker-text-color {
    position: relative;
    padding: 0 2px;
    z-index: 1;
    background-size: 0 100%;
    background-image: linear-gradient(to right, #DBFF00 0, #DBFF00 100%);
    background-repeat: no-repeat;
    transition: background 1.33s;
}
mark.has-inline-color.has-marker-text-color.animation {
    background-size: 100% 100%;
}