EEK! Error messages appearing in black and very tiny.

Please help!

I need to change the colour/size of credit card errors

can anyone advise where this is located in the style sheet?

people are missing them and wondering why their card is not processing

I'm not sure off the top of my head, but post the line or two of source which displays this warning and I can probably figure it out.

Do you have these lines in your stylesheet?

/*warnings, errors, messages*/
.messageStackWarning, .messageStackError, .messageStackSuccess, .messageStackCaution {
	line-height: 1.8em;
	padding: 0.2em;
	border: 1px solid #000000;
	}

.messageStackWarning, .messageStackError {
	background-color: #ff0000;
	color: #ffffff;
	}

.messageStackSuccess {
	background-color: #99FF99;
	color: #000000;
	}

.messageStackCaution {
	background-color: #FFFF66;
	color: #000000;
	}

If not, add them.