.gi-s input[type=number]::-webkit-inner-spin-button, 
.gi-s input[type=number]::-webkit-outer-spin-button { 
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	margin: 0; 
}

@-moz-document url-prefix() {
	.gi-s input[type=number] {
		-moz-appearance: textfield;
	}
}