Changing size of radio buttons in matrix table only

I used a support page to get numbers in my matrix table radio buttons which is exactly what I wanted (using the javascript below), but the font of the numbers is too big and bumping up against the inside of the bubbles (we are using a static theme). Is there a way to decrease the font size for just the numbers in the bubbles OR increase the size of the radio buttons for just the matrix table? Thank you! jQuery("#"+ this.questionId +" tr.ChoiceRow > td.c4 > label").html("1"); jQuery("#"+ this.questionId +" tr.ChoiceRow > td.c5 > label").html("2"); jQuery("#"+ this.questionId +" tr.ChoiceRow > td.c6 > label").html("3");