/* General styling for both valid and invalid input */
.invalidInput input:focus, .validInput input:focus,
 .invalidInput textarea:focus {background-color: lightyellow;}

/* Style for invalid input */
.invalidInput input, .invalidInput textarea {
	border:1px solid #F00;
}

/* Style for valid input */
.validInput input, .validInput textarea {
	border:1px solid #CCC;
}