[CSS] No selectable effect

    .noselect {

        -webkit-touch-callout: none; /* iOS Safari */

        -webkit-user-select: none;   /* Chrome/Safari/Opera */

        -khtml-user-select: none;    /* Konqueror */

        -moz-user-select: none;      /* Firefox */

        -ms-user-select: none;       /* Internet Explorer/Edge */

        user-select: none;           /* Non-prefixed version, currently

                                  not supported by any browser */

    }