Portal Calendar widget

On my forum I'm using the default Calendar widget in the Portal that forumotion provides and I would like to highlight the day of the month with a different font color. I need a CSS code that addresses the day of the month.

This code below addresses the "days of the week" Monday, Tuesday, etc. But I need the code that addresses the day of the month for example today is the 26th. I would want the number 26 highlighted with a different font color or a box that goes around it, something that would highlight it.

thanks, I'm using invision.

This is the code that addresses the days of the week,

Code:

#calendar table.table1 tbody th{
    color: #333 !important;
    }

No, no need that worked perfectly, thanks!