.active_field {
    border: 2px solid #8cb65f;
    border-radius: 5px;
	display: block;
	opacity: 0;
	pointer-events: none;
	position: absolute;
    top: -1px;
    left: -1px;
	width: calc(100% + 2px);
    height: calc(100% + 2px);
    visibility: hidden;
}