combobox.css

.combobox-parent {
	position: relative;

	display: inline-block;
}

.combobox-parent input {
	width: 100%;
}

.combobox-popup {
	position: absolute;
	z-index: 10;

	max-height: 200px;
	display: block;

	overflow: auto;

	border: 1px solid darkgray;
	background-color: white;
}

.combobox-row {
	padding: 0px 5px;
	
	white-space: nowrap;
}

.combobox-row:last-child {
	padding-bottom: 5px;
}

.combobox-row:hover {
	color: white;
	background-color: blue;
}