<style> 
		.custom-error {
		    color:#FF0000;
		}
		/* AngularJS CSS class 
		     I wish use style only the input field in the 'AngularJS CSS' paragraph */
		 #css span.ok, #css span.ko {
		    display:none;
		    float: right;
		    font-size:36px;
		    margin-top: -12px;
		}
		#css .ng-pristine {
		    border:1px solid Gold;
		}
		#css .ng-dirty.ng-valid {
		    border:1px solid Green;
		}
		#css .ng-dirty.ng-invalid {
		    border:1px solid Red;
		}
		#css .ng-dirty.ng-valid ~ span.ok {
		    color:green;
		    display:inline;
		}
		#css .ng-dirty.ng-invalid ~ span.ko {
		    color:red;
		    display:inline;
		} 
	</style>