Aesthetics of the scale element after selection

Hi Jeremy,

I have several scale elements that should be disabled after a selection has been made. I have changed the default aesthetics and added hover effect to the CSS like below. I would like to stop the hovering effect after participants select an option on the scale, but as far as I can understand, there seems to be no simple CSS solution for this. Could you please help resolve it?

CSS:

/*Distance between scale elements*/
.PennController-Scale .option {
    margin: 0em 0.5em;
}

/*Aesthetics for the scale element:*/
.PennController-Scale .option label {
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0px 0px 2px 2px rgb(0,130,180);
    background-color: rgba(70,130,180, 0.2);
    border-radius: 25px;
    width: 25px;
    height: 25px;
    font-size: .9em;
}

/*Aesthetics for the scale element:*/
/*When the cursor hovers on an option*/
.PennController-Scale .option label:hover {
    background-color: steelblue;
    color: white;
    font-size: 1em;
    transition: 0.3s;
}

JS:

PennController.ResetPrefix(null); // Initiate PennController.
PennController.DebugOff(); // Turn off debugger.

newTrial("control",
    newText("control", "Click on number 5!")
            .cssContainer({"margin-top":"5em"})
            .cssContainer({"margin-bottom":"5em"})
            .css("font-size", "1.2em")
            .center()
            .print()
    ,
    newScale("acceptability",7)
        .before( newText("left", "very bad"))
        .after( newText("right", "very good"))
        // .keys()
        .labelsPosition("bottom")
        .once()
        .button()
        .left()
        .center()
        .log()
        .print()
        .wait()
        .test.selected(5) 
            .success(
                    newText("<p><br>Good job!</p>")
                        .color("#009e73").center().print().wait()
                    )
            .failure(
                    newText("<p><br>WRONG!!!</p>")
                        .color("red").center().print().wait()
                    )
);

Link to demo, just in case: https://farm.pcibex.net/r/eXyIvq/

Thanks in advance!
Best, Nasim