Wizard Steps Header Text Size

I am able to use CSS to adjust the text formatting in the wizard step headers, but I am unable to adjust the font size.  Is this locked or can it be adjusted?  I’ve tried a bunch of different syntax.

.nx-editor-header-title {   
    color: Navy;

    font: bold 18px/18px Consolas, Arial;
}

nevermind… got it…

Cool.  Sorry for the slow afternoon.  We got pretty busy.