ol-ext/src/overlay/Magnify.css

A set of cool extensions for OpenLayers (ol) in node modules structure

.ol-overlay-container .ol-magnify 
{	background: rgba(0,0,0, 0.5);
	border:3px solid #369;
	border-radius: 50%;
	height: 150px;
	width: 150px;
	overflow: hidden;
	box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.5);
	position:relative;
	z-index:0;
}

.ol-overlay-container .ol-magnify:before 
{	border-radius: 50%;
	box-shadow: 0 0 40px 2px rgba(0, 0, 0, 0.25) inset;
	content: "";
	display: block;
	height: 100%;
	left: 0;
	position: absolute;
	top: 0;
	width: 100%;
	z-index: 1;
}

.ol-overlay-container .ol-magnify:after 
{
	border-radius: 50%;
	box-shadow: 0 0 20px 7px rgba(255, 255, 255, 1);
	content: "";
	display: block;
	height: 0;
	left: 23%;
	position: absolute;
	top: 20%;
	width: 20%;
	z-index: 1;
	transform: rotate(-40deg);
	-webkit-transform: rotate(-40deg);
}